Les Eyssarts

The track runs through a wood of alder, beech, aspen and oak, the remnant of the natural forest growing at the water's edge, called riparian forest. This type of forest is in decline everywhere, destroyed by urbanisation and by containment of the mountain streams. Yet it is an essential zone for the fixation of river banks and for purifying the water. Since it offers specific natural habitats, it also plays a major role in maintaining biodiversity.

The track rises gently up the right-hand bank of the Gyronde, on the "ubac" side. The "ubac" is the slope that is exposed to the north, so it is in shadow in winter when the sun is low in the sky.

Ripisylve, la «  forêt des rives » est une forêt bien particulière peuplée de saules, d'aulnes auxquels peuvent s'ajouter peupliers, trembles ou bouleaux et bordant les cours d'eau. Elle présente de nombreux intérêts en termes de biodiversité, de prévention des risques naturels ou de lutte contre l’érosion des sols. Mais les différents usages et aménagements des cours d’eau l'ont fragmentée voire totalement fait disparaître.

After the bridge, a large plant with flowers arranged in umbels (in other words, an umbellifer) clings to a small rock bar to the right of the track, the laserwort. This plant belongs to the family Apiaceae, which used to be called umbellifers, and grows in dry areas. It has a distinctive feature: in autumn, the basal part of the stem breaks of its own accord and the entire plant, now dry, sets off rolling down the hillside like a large ball, or is blown by the wind.

Une des particularités du cours d'eau qui draine toute la vallée, du glacier blanc à la Durance, est qu'à chaque confluence, il change de nom ! D'abord torrent du Glacier Blanc, il devient torrent de Saint-Pierre, puis torrent d'Ailefroide, Gyr et enfin Gyronde ! Jusqu'au 12ème siècle, il se nommait sur toute sa longueur Gérendoine, nom provenant d'une racine très ancienne signifiant « rivière des rochers » . Puis il a changé de nom plusieurs fois, et la Gyronde ne représente plus qu'un fragment de la rivière.

The path is edged with large clumps of a plant with purple flowers, the wood cranesbill. The leaves are palmate and divided into 5 to 7 incised and indented lobes, This common plant grows in meadows and cool woods. The «geraniums» we see on balconies are in fact pelargoniums, distant cousins originally from South Africa and cultivated for ornamental purposes.

On the damp banks of the stream, hidden in the grass, is a snail with a beautiful golden brown shell speckled with brown, decorated with a dark spiral stripe. It has a black body. The alpine copse snail is relatively rare and, as its name suggests, it is found in the Alps. It is a sub-species of the ordinary copse snail, which is present across Europe.

C’est l’un des arbres le plus commun, pourvu que le sol soit un peu frais. Il se caractérise par ses feuilles pennées, c'est-à-dire composées de plusieurs segments et en hiver se reconnaît par ses gros bourgeons noirs. Le frêne avait une grande importance dans la vie d’autrefois : son feuillage était utilisé pour nourrir le bétail et son bois pour la réalisation de nombreux objets tels que des manches outils.

Included on the Supplementary Inventory of Historical Monuments in 1931, the chapel of Saint-Romain has been converted into an eco museum. It was the first chapel to be built in Puy-Saint-Vincent and is thought to date from the twelfth century. Up to the mid-fifteenth century, the village bore the name of its patron saint: Puy-Saint-Romain. Then, in honour of the arrival of the Dominican monk Vincent Ferrier, the village took the name Puy-Saint-Vincent. It stands on a rocky promontory outside the village, and offers a panoramic view over the Les Écrins massif and the Gyronde Valley, over Vallouise in particular.

L’érable sycomore est un bel arbre aux feuilles à cinq lobes un peu pointus, ressemblant un peu à celles du platane. Il ne supporte pas la sécheresse : c’est ici l’arbre des forêts de feuillus un peu fraîches. Ses fruits jumelés, munis d’ailes, tombent en tournoyant : ce sont les « hélicoptères » qui amusent beaucoup les enfants. En automne, ses feuilles deviennent jaune d’or, pour notre plus grand plaisir. 

L’épilobe à feuilles étroites est une grande plante dressée aux feuilles allongées. Ses nombreuses fleurs rose pourpre sont disposées en épis lâches au sommet de la tige. Elle forme de grands massifs, ce qui est du plus bel effet lors de sa floraison. C’est une plante pionnière et elle affectionne les talus de piste et les sols qui ont été remués. À la fin de l’été, ses très nombreuses graines dotées d’un plumet s’envolent en masse dans la lumière déjà rasante…

A sizeable aspen grows on the roadside, on the edge of a small wood of fellow-aspens. This tree has a smooth, greenish trunk and rounded, crenelated leaves which take on magnificent colours in autumn. The stem, or petiole, of aspen leaves is flat and twisted, so it can be caught by the slightest breeze making the foliage «quake» hence its common name, the quaking aspen. It grows in places where the soil is quite damp.

Hidden in the tree foliage, the Eurasian blackcap announces its presence with its loud and piping song. Its head is adorned with a cap which is black in the male and russet in the female. The rest of its plumage is greyish, its underside lighter than its back. It is a migratory bird which travels to the Maghreb to overwinter. However, increasing numbers of birds make only a partial migration, flying to the south of France to spend the winter. 

This is one of the most common trees, provided the ground is relatively cool. It is characterised by its pinnate leaves, that is to say, made up of several segments, and in winter is can be recognised by its large black leaf buds. The ash was extremely important in times past: its foliage was used to feed cattle and its hard, flexible wood was used to make a variety of objects such as tool handles. 

The track runs through a place called Les Eyssarts, which gave this circuit its name. This name comes from the word essart which refers to «a place that has been cleared, most often to create agricultural land». A few meadows, but above all former canals and low walls hidden under the advancing forest, bear witness to this past use of the land.