Amaranthus standleyanus
Parodi ex Covas
Familia
AMARANTHACEAE
Bledo
Amaranthus standleyanus is an annual herbaceous plant belonging to
the Amaranthaceae family. This species is notable for its great
adaptability and resilience on land that has been altered by humans.
It grows in an erect to decumbent manner (with stems that are initially
inclined or prostrate but later rise), reaching heights of between 30
and 70 centimetres. Its stems are usually glabrous (smooth) at the base
and slightly hairy towards the upper end.
The leaves are lanceolate,
ovate or rhombic, arranged alternately, with margins that are sometimes
wavy and a small mucron (stiff tip) at the apex.
It develops dense,
greenish spikes, both terminal and axillary. It is an anemophilous
plant, meaning that it releases dense clouds of pollen so that the wind
can carry out pollination.
As a fast-growing pioneer plant, it
completes its entire life cycle between late spring and autumn, before
dying with the first frosts.
It is native to the temperate and arid
regions of South America, occurring naturally throughout Argentina,
Bolivia, Paraguay and Uruguay.
It has successfully naturalised in
numerous regions of the world as a neophyte or opportunistic species. It
is present across much of Europe (including Spain and, notably, the
Canary Islands), as well as in parts of Africa and Asia.
It rapidly
colonises disturbed soils, roadside verges, abandoned farmland, river
terraces and sunny gravel beds.
Its leaves and seeds are suitable for
local consumption. However, like other members of the genus Amaranthus,
the leaves can accumulate high levels of nitrates if grown in
over-fertilised soils.
El Hierro