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Lesser Knapweed, Aciano negro

Centaurea nigra


Perennial flowering herb in the Asteraceae family, that grows up to a metre in height. The leaves are up to 25 centimetres long, usually deeply lobed, and hairy. The lower leaves are stalked, whilst the upper ones are stalkless. The inflorescence contains a few flower heads, each a hemisphere of black or brown bristly phyllaries. The head bears many small bright purple flowers. The fruit is a tan, hairy achene 2 or 3 millimetres long, sometimes with a tiny, dark pappus. It flowers from July until September.


Spotted at a meadow.Atlantic forest


Camera Model: NIKON D300. Exposure Time: 1/60 sec.; f/32; ISO Speed Rating: 800. Exposure Bias: 0 EV; Focal Length: 90.0 mm. Flash fired

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Spotted by

Coaña, Principado de Asturias, Spain

Spotted on Aug 25, 2013
Submitted on Feb 24, 2014

Spotted for Mission

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