Here is a plant that you all know from having seen it in the mountains. It is rare and easily confused with others. Roland
Scientific name: Arnica montana L., 1753
Origin of the name: the name has been deformed and probably comes from the Greek “ptamirca”, “which makes you sneeze, one of the properties of this plant and from “montana”, “mountain” as its living environment.
Other common French names: Tabac des Vosges, Souci des Alpes, Plantain des Alpes, Herbe aux prêcheurs, Herbe aux chutes , Bétoine des montagnes …there are probably many more.
Dialect / German common name: Wolferley, Wolfstöterin
English names: wolf's bane, leopard's bane, mountain tobacco and mountain arnica,
Date of observation: plant seen on July 8 on the heights of Metzeral (68).
Plant family: Asteraceae (formerly Compositae) such as daisy, cornflower, dandelion, centaury. This family of plants is special because the flower is in fact a set of flowers united in a tight head, we say a capitulum. It is a highly evolved family of plants. It signals itself to insects as a single large flower. The insect visits several flowers on each flower head and several flower heads. The flowers are often equipped with aigrettes or parachutes that the wind carries away. The number of flowers and the pappus give a great capacity for dissemination. Land occupation by these plants is faster than by most other plants. This is why many Asteraceae, of exotic origin, are invasive.
Category: Perennial plant with rhizome, aromatic, with large leaves and large yellow daisy-like flowers
Height: 20 to 50 cm Stems and roots: tomentose plant with straight stem
Leaves: simple, not toothed. A rare feature, the pair or pairs of small leaves along the stem are opposite, while almost all the leaves of Asteraceae are alternate. The basal leaves are spread out in a rosette and have a fine felting formed by glandular and fragrant hairs. They are stalkless.