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Centaurea scabiosa

Species of flowering plant in the daisy family Asteraceae From Wikipedia, the free encyclopedia

Centaurea scabiosa
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Centaurea scabiosa, or greater knapweed, is a perennial plant of the genus Centaurea. It is native to Europe and bears purple flower heads.

Quick Facts Scientific classification, Binomial name ...
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Greater knapweed is found growing in dry grasslands, hedgerows and cliffs on lime-rich soil. Upright branched stems terminate in single thistle-like flowerheads, each having an outer ring of extended, purple-pink "ragged" bracts which form a crown around the central flowers. The plant has deeply dissected leaves which form a clump at the base.

This species is very valuable to bees. It is also a magnet for many species of butterfly. Among them is the marbled white.

This is the only known food plant for caterpillars of the Coleophoridae case-bearer moth Coleophora didymella. Centaurea scabiosa has been used in traditional herbal healing as either a vulnerary or an emollient.

The plant is sometimes confused with devils-bit scabious, however the leaves on this plant are arranged alternately, whereas in devils-bit they are opposite.[1]

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Description

This perennial herb grows with an erect grooved stem up to 90 cm high. The leaves are alternate, pinnatifid and with stalks. The flower heads are 5 cm across and on long stalks. The florets are red-purple.[2][3]

Habitat

Dry grassland, roadsides and calcareous substrate.[3]

Distribution

Found in Great Britain and Ireland.[3]

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References

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