Rumex maritimus

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Habitus and growth type

  • Height [m]: 0.1––0.7
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  • Growth form: annual herb
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  • Life form: therophyte
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  • Life strategy: SR – stress-tolerator/ruderal
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  • Life strategy (Pierce method based on leaf traits): CR
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  • Life strategy (Pierce method, C-score): 57.1 %
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  • Life strategy (Pierce method, S-score): 0 %
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  • Life strategy (Pierce method, R-score): 42.9 %
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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: present
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  • Petiole: present
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  • Leaf life span: summer green
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  • Leaf anatomy: helomorphic
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Flower

  • Flowering period [month]: July-September
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  • Flowering phase: 8 Clematis vitalba-Galium sylvaticum (mid-summer)
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  • Flower colour: green
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  • Flower symmetry: actinomorphic
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  • Perianth type: homochlamydeous
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  • Perianth fusion: free
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  • Inflorescence type: panicula e pseudospicis composita
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  • Dicliny: synoecious, gynomonoecious, androdioecious
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  • Generative reproduction type: facultative autogamy
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  • Pollination syndrome: wind-pollination, selfing
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Fruit, seed and dispersal

  • Fruit type: dry fruit – achene/cypsela/samara
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  • Fruit colour: yellow, brown
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  • Reproduction type: only by seed/spores
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  • Dispersal unit (diaspore): fruit, infrutescence or its part
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  • Dispersal strategy: Sparganium (mainly autochory and hydrochory)
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  • Myrmecochory: non-myrmecochorous (b)
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Belowground organs and clonality

  • Shoot life span (cyclicity): monocyclic shoots prevailing
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  • Primary root: absent
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  • Bud bank

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  • 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): 5
  • 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): 10
  • Depth of the belowground bud bank (root buds exluded) [cm]: 3
  • 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): 5
  • 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): 10
  • Depth of the belowground bud bank (root buds included) [cm]: 3

Trophic mode

  • Parasitism and mycoheterotrophy: autotrophic
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  • Carnivory: non-carnivorous
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  • Symbiotic nitrogen fixation: no nitrogen-fixing symbionts
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Karyology

  • Chromosome number (2n): 40
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  • Ploidy level (x): 4
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  • 2C genome size [Mbp]: 1962.33
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  • 1Cx monoploid genome size [Mbp]: 490.58
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  • Genomic GC content: 40.3 %
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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
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  • Temperature indicator value: 6 – transition between values 5 and 7
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  • Moisture indicator value: 9 – wetness indicator, focus on often soaked, poorly aerated soils
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  • Reaction indicator value: 7 – indicator of slightly acidic to slightly basic conditions, never occurring in very acidic conditions
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  • Nutrient indicator value: 8 – pronounced nutrient indicator
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  • Salinity indicator value: 2 – oligohaline, often on soils with very low salt content
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  • Indicator values for disturbance

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  • Whole-community disturbance frequency indicator value: -0.4
  • Herb layer disturbance frequency indicator value: -0.39
  • Whole-community disturbance severity indicator value: 0.45
  • Herb layer disturbance severity indicator value: 0.47
  • Whole-community structure based disturbance indicator value: 0.65
  • Herb layer structure-based disturbance indicator value: 0.67

Habitat and sociology

  • Occurrence in habitats

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  • 3 Aquatic vegetation

  • 3C Macrophytic vegetation of oligotrophic lakes and pools: 1 – rare occurrence
  • 4 Wetland and riverine herbaceous vegetation

  • 4A Reed-beds of eutrophic still waters: 1 – rare occurrence
  • 4B Halophilous reed and sedge beds: 2 – optimum
  • 4C Eutrophic vegetation of muddy substrata: 2 – optimum
  • 4D Riverine reed vegetation: 1 – rare occurrence
  • 4E Reed vegetation of brooks: 1 – rare occurrence
  • 4F Mesotrophic vegetation of muddy substrata: 1 – rare occurrence
  • 4G Tall-sedge beds: 1 – rare occurrence
  • 4H Vegetation of low annual hygrophilous herbs: 2 – optimum
  • 4I Vegetation of nitrophilous annual hygrophilous herbs: 3 – dominant
  • 6 Meadows and mesic pastures

  • 6G Vegetation of wet disturbed soils: 1 – rare occurrence
  • 10 Saline vegetation

  • 10G Continental vegetation of annual halophilous grasses: 1 – rare occurrence
  • 10I Inland saline meadows: 1 – rare occurrence
  • 11 Heathlands and scrub

  • 11J Willow galleries of loamy and sandy river banks: 1 – rare occurrence
  • 13 Anthropogenic vegetation

  • 13A Annual vegetation of ruderal habitats: 1 – rare occurrence
  • 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
  • Diagnostic taxon

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  • Constant taxon

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  • Dominant taxon

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  • Ecological specialization indices

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  • Ecological specialization index for all vegetation types: 5
  • Ecological specialization index for non-forest vegetation: 5
  • Ecological specialization index for forest vegetation: 5.1
  • Colonization ability

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  • Index of colonization success (ICS): 4
  • Index of colonization potential (ICP): 2
  • Optimum successional age [years]: 5

Distribution and frequency

  • Floristic zone: northern temperate, southern temperate, submeridional, meridional
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  • Floristic region: Europe, Asia
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  • Continentality degree: 7
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  • Distribution range extension along the continentality gradient: 7
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  • Elevational belt in the Czech Republic: lowlands, colline belt, submontane belt
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  • Occurrence frequency in the basic grid mapping cells and quadrants of the basic grid mapping cells: 433, 947
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  • Commonness in vegetation plots from the Czech Republic

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  • Occurrence frequency in vegetation plots: 2 %
  • Occurrence frequency in vegetation plots with a cover above 5%: 23.9 %
  • Occurrence frequency in vegetation plots with a cover above 25%: 11.5 %
  • Occurrence frequency in vegetation plots with a cover above 50%: 3.6 %
  • Mean percentage cover in vegetation plots: 8.8 %
  • Maximum percentage cover in vegetation plots: 88 %
  • Number of habitats with taxon occurrence in the Czech Republic

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  • Number of narrow habitats in which the taxon occurs: 15
  • Number of narrow habitats in which the taxon has its optimum: 4
  • Number of broad habitats in which the taxon occurs: 6
  • Number of broad habitats in which the taxon has its optimum: 1

Threats and protection

  • Red List 2017 (national categories): taxon is not on the Red List
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  • Red List 2017 (IUCN categories): LC(NA) – least concern (taxon is not on the Red List)
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  • Legal protection: not protected by law
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