The Purple Torch of Clearings

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Scientific name:
Chamaenerion angustifolium (L.) Scop.
Common name:
Fireweed
Family:
Onagraceae
Biological form:
Emicriptofita scaposa

Characteristics

Habit: Vigorous rhizomatous perennial herb, capable of reaching 50–220 cm in height. Stem: Erect, angular and glabrous. Leaves: Alternate and sessile, narrowly lanceolate. The lower surface is glaucous, with very marked lateral veins that do not reach the leaf margin but instead join into a marginal vein. Flowers: Large and showy, arranged in long terminal racemes. The corolla has four asymmetrical rose-purple petals, the upper ones larger. The style is characteristically curved downward and ends in a stigma divided into four lobes. Fruits: Oblong, woolly capsules opening into four valves to release minute seeds with a tuft of white hairs for wind dispersal. Flowering: June–August.

Distribution and habitat

Chorological type: Circumboreal. Distribution in Italy: Common throughout the country, especially in montane and alpine areas. Habitat: A heliophilous ruderal species colonising woodland margins, railway embankments, stream beds and burnt ground, between 600 and 2500 m above sea level.

Etymology

Generic name (Chamaenerion): Composed of the Greek khamai, “low” or “on the ground”, and Nerium, “oleander”, because of the resemblance of its leaves to those of oleander. Specific name (angustifolium): From the Latin angustus, “narrow”, and folium, “leaf”, describing the linear shape of the leaf blades.

Uses and properties

Fireweed is both edible and medicinal. Thanks to its emollient, astringent and anti-inflammatory properties, due to tannins and mucilages, it is used in the treatment of oropharyngeal and intestinal inflammations. In cooking, the young shoots are eaten like asparagus, while in Russia and the Caucasus the fermented and dried leaves are used to produce Koporye tea, an aromatic caffeine-free drink.

Curiosities

Its ability to colonize rapidly sterile or burnt soils earned it the English name “fireweed”. After the bombings of the Second World War, it was among the first species to colour the rubble of European cities purple, becoming a powerful botanical symbol of hope and rebirth.