Cardo negro

Description:

Cirsium vulgare (Spear thistle, Bull thistle, Plumed thistle, Scotch thistle, Roadside thistle; syn. C. lanceolatum) is a species of the genus Cirsium, native throughout Europe, Asia and northern Africa, but also present in North America and Australia as an invasive weed. It is designated an "injurious weed" under the UK Weeds Act 1959[1] and a noxious weed in Australia[2] and in nine US states.[3] Cirsium vulgare, Wagga Wagga, NSW, Australia It is a tall biennial thistle, forming a rosette of leaves in the first year, and a flowering stem 1–2.5 m tall in the second year. The leaves are very spiny, deeply lobed, up to 15–25 cm long (smaller on the upper part of the flower stem). The inflorescence is 2.5–5 cm diameter, pink-purple, with all the florets of similar form (no division into disc and ray florets). The seeds are 5 mm long, with a downy pappus, which assists in wind dispersal.(Wikipedia)

Habitat:

En Chile esta especie crece en las siguientes condiciones ambientales: Habitat según la elevación: Elevación baja, valles del interior. Condiciones de agua: Secano, donde el período sin precipitaciones dura 3 - 5 meses. Las precipitaciones alcanzan 400 - 800 mm anuales, concentrándose en invierno. Areas con constantes precipitaciones. períodos secos cortos son posibles, pero no duran más de 1 mes. Condiciones de luz: Expuesto. Pleno sol sin ninguna protección. Partes planas o laderas de exposición norte.