greater knapweed - meaning and definition. What is greater knapweed
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What (who) is greater knapweed - definition

SPECIES OF PLANT
Greater Knapweed; Greater knapweed

Centaurea scabiosa         
Centaurea scabiosa, or greater knapweed, is a perennial plant of the genus Centaurea. It is native to Europe and bears purple flower heads.
Melitaea phoebe         
SPECIES OF INSECT
Cinclidia phoebe; Knapweed Fritillary; Knapweed fritillary
Melitaea phoebe, the knapweed fritillary, is a butterfly of the family Nymphalidae. It is found in the Palearctic realm, except the northernmost locations.
Greater tubercle         
  • Attachments of greater tubercle
  • Rear view of the greater tubercle of right humerus
BONY PROJECTION ON THE PROXIMAL END OF THE HUMERUS
Greater tubercle of the humerus; Greater tuberosity; Greater Tubercle; Greater tubercle of humerus; Tuberculum majus; Tuberculum majus humeri; Greater tubercles; Tuberositas major; Major tubercle
The greater tubercle of the humerus is the outward part the upper end of that bone, adjacent to the large rounded prominence of the humerus head. It provides attachment points for the supraspinatus, infraspinatus, and teres minor muscles, three of the four muscles of the rotator cuff, a muscle group that stabilizes the shoulder joint.

Wikipedia

Centaurea scabiosa

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

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.