Picris echioides

The false-viperine Picride ( Picris echioides L. or Helmintia echioides ) is a species of the family of the asteracées , subfamily of the Lactucoidea and tribe of the Lactuceae .
It is often indicated as being a " Bad grass ".

Description

30cm with 60cm. All the plant is roughcast stiff hairs with 2 hooks. The stem is drawn up, striated and irregularly ramified. Long sheets on board undulated very rough with winged petioles; the higher is sessile and engainent the stem. Ligulées flowers all. Flowerheads yellow gilded from 20 to 35 mm stalks. Fruit: brown-yellowish akene, curved, striated transversely, finished by a long nozzle, carrying a pappus with white and feathery silks.

Biology

Thérophyte or Bi-annual Hémicryptophyte .

Flowering

July at September.

Habitat

Cultures, waste lands, edges of ways, dams. Thermoxérophile. Nitrophile.

Distribution

Southernmost Europe (subméditerranéen), Asia of South-west, North Africa, Macaronésie. Species in the beginning considered as little attends in France but from which the surface seems to extend towards the East from Europe or it becomes Adventice.

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