The thistle with the asses , or onopordon false-acanthus ( Onopordum acanthium ) is large a thorny Plante, of the family of the Astéracées, enough commune in calcareous ground in all the central Europe.
Common noun: thistle with the asses, thistle with sheets of acanthus, fart of ass (translation of the name onopordum ), grass with the asses, thistle of Scotland, wild artichoke. of: Eseldistel, in: knitting machine thistle, Scotch tape thistle, it: spina bianca, acantio .
Description
It is a large plant with bi-annual cycle of vegetation, being able to reach 2 m in height. Stemless plant the first year, in the shape of rivet washer of sheets, it produces the second year of large floriferous stems, stiff, very ramified. The root of the swivelling type thick and is very developed.The sheets large, oblong, are deeply divided. Their thorny edge is prolonged at the base along the stem. They are green blanchâtre, very cotonneuses especially on the lower face.
The flowers, crimsons, are joined together in flowerheads globulous from 3,5 to 5,5 cm in diameter, with fleshy receptacle, with cottony involucre, which open out June at September.
The fruits, by the Akène S, are surmounted by a brush of feathery hairs of reddish color.
Distribution
This species is originating in a vast zone including Europe (Central Europe until the Ukraine, southernmost Europe of the Portugal to the Greece), the Central Asia and Western (of the Turkey to the Afghanistan and the Pakistan).It was largely naturalized in all the continents. With the the United States, she is regarded as plants invading.
It is a rustic plant which reproduces very easily by sowing.
Use
The fleshy receptacle of the flowerheads, as well as the base of bractées which surround it, are rich in Inuline and edible with the manner of the Artichaut. It are grazed by the ass S.It is also a plant mellifère, which attracts the Abeille S by its abundant nectar.
Certain varieties are cultivated like decorative plants, for the very decorative character of the foliage and the flowerheads.
It is also a Mauvaise grass which can infest certain cultures by its facility of reproduction by seeds.
Symbolic system
This thistle is the emblem of the Scotland and the Lorraine.
See too
External references
Internal bonds
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