Patrick Blanc observing the persistant leaves of Rhododendron ferrugineum just above a forest torrent, Grisons, Switzerland, May 2016
Patrick Blanc observing the persistant leaves of Rhododendron ferrugineum emerging from the snow in spring, Grisons, Switzerland, May 2016
Patrick Blanc observing cushions of Saxifraga paniculata in vertical rock cracks, Grisons, Switzerland, May 2016
Patrick Blanc looking at a rheophytic individual of Agrostis stolonifera, Como lake, Italy, April 2016
Patrick Blanc laying on a steep slope carpeted by Juniperus communis var. saxatilis, Grisons, Switzerland, May 2016