Spruce Scrubland

The maple-spruce forest, shown at the first sign on the Jackdaw Trail, is found at altitudes of between 1,200 and 1,300 metres. It is an intermediate forest between the maple forest, where the sycamore maple dominates, and the spruce forest, where the spruce dominates. The spruce-maple forest is probably the result of ancient deforestation, perhaps linked to charcoal production. Scabious forests are typical of steep, unstable limestone slopes, where the vegetation is subject to severe stress. Deforestation would have favoured maple trees, which are the most resistant to avalanches. As the forest gradually replenishes itself, it is able to protect itself from the pressure of the snow, making it possible for firs and spruces to return.

The yew, whose Latin name is taxus baccata, is a member of the Taxaceae family and is shown at the first sign on the jackdaw trail. It is a tree with evergreen needle-like leaves that are dark green, flat and flexible. The plant is dioecious. Male and female flowers are borne on separate plants. Yew prefers low-lying areas and can reach heights of 15 to 20 m. Its presence here is due to the exceptional exposure of this forest, but it remains modest in size. Yew is toxic and equines are particularly sensitive to it.