Canadian golden rod: Pollenwarndienst

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Canadian golden rod (Solidago canadiensis)

Family:

Daisy family (Asteraceae)

Flowering period:

July to October

Distribution:

originates from North America and is an invasive neophyte in Europe, occurs especially on fallow land, embankments, along watersides, in meadows and on rail banks as well as on sandy, clay and loamy soils, up to 1200m sea level, also planted as ornamental plant

Appearance:

persistent and herbaceous, lanceolate leaves, serrated in the front part, stalk with hairs in the upper part, panicle branches carries flower heads, golden yellow flowers (naming!)

Allergenicity:

low, because it is insect pollinated, therefore particularly relevant in close contact, contact dermatitis might occur, cross-reaction to other plants of the daisy family (mugwort, ragweed, chamomile …)

Link zum Pollenatlas: Solidago virgaurea

Wissenschaftlicher Beirat:
Ass. Prof. Dr. Siegfried Jäger (Medizinische Universität Wien)
Univ. Prof. Dr. Reinhart Jarisch (Floridsdorfer Allergie Zentrum)
Mag. Matthias Werchan (Charité Berlin)
Prof. Dr. med. Karl-Christian Bergmann (Charité Berlin)

Quellen:

Österreichischer Pollenwarndienst, Medizinische Universität Wien, Österreich
Charité, Allergie-Zentrum-Charité, Klinik für Dermatologie, Venerologie und Allergologie, Berlin, Deutschland
Wikipedia
www.alles-zur-allergologie.de
22 Jahre Blüh- und Fruktifikationsuntersuchungen der Waldbaumarten im Lehrforst Ofenbach/Rosalia. R. Litschauer. 2010. Bundesforschungs- und Ausbildungszentrum für Wald, Naturgefahren und Landschaft, BFW-Berichte 144, 36 pp.
Waldbau auf soziologisch-ökologischer Grundlage. H. Mayer 1977. Gustav Fischer Verlag, Stuttgart – New York, 482 pp.

habitus (Image rights: Katharina Bastl)
habitus (Image rights: Katharina Bastl)
flowers shortly before flowering (Image rights: Katharina Bastl)
flowers shortly before flowering (Image rights: Katharina Bastl)
open flowers (Image rights: Katharina Bastl)
open flowers (Image rights: Katharina Bastl)
insect pollination as for example by the bee (Image rights: Katharina Bastl)
insect pollination as for example by the bee (Image rights: Katharina Bastl)
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