Chamaecytisus ratisbonensis

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Habitus and growth type

  • Height [m]: 0.1–0.3
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  • Growth form: dwarf shrub
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  • Life form: chamaephyte
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  • Life strategy: CS – competitor/stress-tolerator
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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: compound – ternate
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  • Stipules: absent
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  • Petiole: present
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  • Leaf life span: summer green
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  • Leaf deciduousness in woody plants: winter deciduous
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  • Leaf anatomy: scleromorphic
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  • Functional leaf type in woody plants: broad deciduous or semi-deciduous
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Flower

  • Flowering period [month]: April-June
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  • Flowering phase: 4 Fagus sylvatica-Galeobdolon (start of mid-spring)
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  • Flower colour: yellow
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  • Flower symmetry: zygomorphic
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  • Perianth type: calyx and corolla
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  • Perianth fusion: free
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  • Calyx fusion: synsepalous
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  • Inflorescence type: flores solitarii
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  • Dicliny: synoecious
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  • Generative reproduction type: facultative allogamy
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  • Pollination syndrome: insect-pollination
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Fruit, seed and dispersal

  • Fruit type: dry fruit – legume
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  • Fruit colour: brown
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  • Reproduction type: only by seed/spores
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  • Dispersal unit (diaspore): seed
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  • Dispersal strategy: Allium (mainly autochory)
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  • Myrmecochory: myrmecochorous
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Belowground organs and clonality

  • 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: present
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  • Bud bank

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  • Number of buds per shoot at the soil surface (root buds excluded): 10
  • Number of buds per shoot at a depth of 0–10 cm (root buds excluded): 8
  • 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): 18
  • Depth of the belowground bud bank (root buds exluded) [cm]: 3
  • Number of buds per shoot at the soil surface (root buds included): 10
  • Number of buds per shoot at a depth of 0–10 cm (root buds included): 8
  • 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): 18
  • 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: symbiosis with rhizobia
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Karyology

  • Chromosome number (2n): 48
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  • Ploidy level (x): 4
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  • 2C genome size [Mbp]: 2042.26
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  • 1Cx monoploid genome size [Mbp]: 510.56
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  • Genomic GC content: 38 %
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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: 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
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  • Temperature indicator value: 7 – heat indicator, occurring in relatively warm lowlands
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  • Moisture indicator value: 3 – missing on damp soil
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  • Reaction indicator value: 7x – indicator of slightly acidic to slightly basic conditions, never occurring in very acidic conditions (generalist)
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  • Nutrient indicator value: 3 – occurring at nutrient-poor sites more frequently than at average sites and exceptionally at rich sites
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  • Salinity indicator value: 0 – not salt tolerant, glycophyte
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  • Indicator values for disturbance

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  • Whole-community disturbance frequency indicator value: -0.81
  • Herb layer disturbance frequency indicator value: -0.32
  • Whole-community disturbance severity indicator value: 0.19
  • Herb layer disturbance severity indicator value: 0.22
  • Whole-community structure based disturbance indicator value: 0.48
  • Herb layer structure-based disturbance indicator value: 0.52

Habitat and sociology

  • Occurrence in habitats

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  • 6 Meadows and mesic pastures

  • 6A Mesic Arrhenatherum meadows: 1 – rare occurrence
  • 6C Pastures and park grasslands: 1 – rare occurrence
  • 8 Dry grasslands

  • 8A Hercynian dry grasslands on rock outcrops: 1 – rare occurrence
  • 8B Submediterranean dry grasslands on rock outcrops: 1 – rare occurrence
  • 8C Narrow-leaved sub-continental steppes: 2 – optimum
  • 8D Broad-leaved dry grasslands: 2 – optimum
  • 8E Acidophilous dry grasslands: 1 – rare occurrence
  • 8F Thermophilous forest fringe vegetation: 2 – optimum
  • 9 Sand grasslands and rock-outcrop vegetation

  • 9F Basiphilous vegetation of spring therophytes and succulents: 1 – rare occurrence
  • 11 Heathlands and scrub

  • 11A Dry lowland to subalpine heathlands: 1 – rare occurrence
  • 11N Low xeric scrub: 1 – rare occurrence
  • 12 Forests

  • 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
  • 12O Peri-Alpidic pine forests: 1 – rare occurrence
  • 12W Pine and larch plantations: 1 – rare occurrence
  • Affinity to the forest environment

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  • Affinity to the forest environment in Thermophyticum: 2.1 – taxon occurring both in the forest and open vegetation
  • Affinity to the forest environment in Mesophyticum and Oreophyticum: 2.1 – taxon occurring both in the forest and open vegetation
  • Diagnostic taxon

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  • Ecological specialization indices

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  • Ecological specialization index for all vegetation types: 5.8
  • Ecological specialization index for non-forest vegetation: 6
  • Ecological specialization index for forest vegetation: 4.8
  • Colonization ability

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  • Index of colonization success (ICS): 3
  • Index of colonization potential (ICP): 3
  • Optimum successional age [years]: 25

Distribution and frequency

  • Floristic zone: northern temperate, southern temperate, submeridional
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  • Floristic region: Europe, Western Siberia
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  • Continentality degree: 8
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  • Distribution range extension along the continentality gradient: 4
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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: 173, 371
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  • Commonness in vegetation plots from the Czech Republic

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  • Occurrence frequency in vegetation plots: 0.3 %
  • Occurrence frequency in vegetation plots with a cover above 5%: 2.3 %
  • 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: 2.4 %
  • Maximum percentage cover in vegetation plots: 13 %
  • Number of habitats with taxon occurrence in the Czech Republic

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  • Number of narrow habitats in which the taxon occurs: 16
  • Number of narrow habitats in which the taxon has its optimum: 3
  • Number of broad habitats in which the taxon occurs: 5
  • Number of broad habitats in which the taxon has its optimum: 1

Threats and protection

  • Red List 2017 (national categories): C4a – near threatened taxon
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  • Red List 2017 (IUCN categories): NT – near threatened
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  • Legal protection: not protected by law
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