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5.1.4. Feuchter Krautsaum (höheren Lagen)

Petasition officinalis

Description

Phyonomy and Ecology (© Delarze & al. 2015)

Die feuchten Krautsäume sind leicht an den grossen, breiten Blättern der Gemeinen Pestwurz (Petasites hybridus) zu erkennen, die eine dichte, eintönige Hochstaudenflur von über 1 m Höhe bildet. Der Kälberkropf (Chaerophyllum hirsutum) und die Weisse Pestwurz (Petasites albus) sind in diesen Säumen häufige Begleiter. Das Petasition officinalis ersetzt das Convolvulion entlang von Fliessgewässern in den höheren Lagen. Es wächst oberhalb des mittleren Sommerwasserstandes. Durch Hochwasser mit seinen Abtragungen und Ablagerungen werden diese Pestwurzfluren oft stark beeinträchtigt und müssen sich wieder neu entwickeln. Das skelettreiche und gut durchlüftete Substrat bietet Raum für eine intensive biologische Aktivität.

Distribution map

  • Calculation method

    Current distribution: Weighted sum (number of characteristic and frequent species) per hectare based on current observations. Reported characteristic species are given a weighting of 10, while others are counted without weighting. The habitat is considered to be present in a grid cell (5 x 5 km) if it contains at least one hectare with a minimum value of 11 points.

    Potential distribution: Weighted sum (number of characteristic and frequent species) per hectare based on species distribution models. The calculation strategy is the same as for current distribution, but maps derived from species distribution models are used instead of current observations.

Pictures

List of species

bold Dominant species, influencing the appearance of the habitat
Character species Character species
Less strictly linked to a specific habitat Less strictly linked to a specific habitat


Scientific name English name
Character species Orobanche flava aggr.Pestwurz-Würger
Character species Petasites hybridus (L.) G. Gaertn. & al.Rote Pestwurz
Character species Telekia speciosa (Schreb.) Baumg.NGrosses Rindsauge
Character species Valeriana sambucifolia J. C. MikanHolunderblättriger Baldrian
Less strictly linked to a specific habitat Aruncus dioicus (Walter) FernaldWald-Geissbart
Less strictly linked to a specific habitat Carduus personata (L.) Jacq.Kletten-Distel
Less strictly linked to a specific habitat Chaerophyllum hirsutum L.Gewöhnlicher Gebirgs-Kälberkropf
Less strictly linked to a specific habitat Cirsium erisithales (Jacq.) Scop.Klebrige Kratzdistel
Less strictly linked to a specific habitat Epilobium tetragonum subsp. lamyi (F. W. Schultz) NymanLamys Vierkantiges Weidenröschen
Less strictly linked to a specific habitat Filipendula ulmaria (L.) Maxim.Moor-Geissbart
Less strictly linked to a specific habitat Myrrhis odorata (L.) Scop.Süssdolde
Less strictly linked to a specific habitat Petasites albus (L.) Gaertn.Weisse Pestwurz
Less strictly linked to a specific habitat Polygonum bistorta L.Schlangen-Knöterich
Less strictly linked to a specific habitat Silene dioica (L.) Clairv.Rote Waldnelke
Less strictly linked to a specific habitat Stellaria nemorum L. subsp. nemorumGewöhnliche Hain-Sternmiere

Status

Status according to the habitat priority list at the national level

National Priority 4: weak national priority
Need to take action 2:
International responsibility 1: weak

Status on national Red List 2016

IUCN status:   Near threatened

LC: Non menacé

Additional information

IUCN criteria: A1

  • Legend
    COCollapsed
    CRCritically Endangered
    ENEndangered
    VUVulnerable
    NTNear Threatened
    LCLeast Concern

Regeneration status 2016

Regeneration class 2: 5 to 10 years