The general council of Rhône set up a free phone number (0 800 869 869) to allow the public to inquire and to learn to recognize the plant.
Website
Leaflet
http://www.assemblee-nationale.fr/13/propositions/pion3674.asp
Before going outside, consult thanks to iPollen:
* the pollen data in your region, stemming from our partnership with the RNSA. The appli is customizable, you can choose the allergens to which you are sensitive,
* the air quality in the main towns (from the daily bulletin of the Air department of ADEME,
* the meteo data by departments (Meteo France source), because weather conditions can also have an impact on the dispersal of pollens and their quantity in the air which we inhale
* finally, with iPollen you can find easily the closest pharmacies
It is a free application which works on iPhone and on iPad.
IPollen can be downloaded in Appstore Appstore/Recherche => type "pollen" or " alert pollen " - do not hesitate to leave an opinion on the appstore!

Leaflet of RNSA sentinel pollen path in Saint-Genis l'Argentière