[Knapweeds: The Genus Centaurea in the Cascade Mountains of Oregon and Washington]

Hybrid Knapweed, Meadow Knapweed, Protean Knapweed

Centaurea xgerstlaueri

Synonyms: Centaurea debeauxii ssp. thuillier, Centaurea xmoncktonii, Centaurea nigra x Centaurea jacea, Centaurea xpratensis, Centaurea pratensis

Hybrid Knapweed, Meadow Knapweed, Protean Knapweed: Centaurea xgerstlaueri (Synonyms: Centaurea debeauxii ssp. thuillier, Centaurea xmoncktonii, Centaurea nigra x Centaurea jacea, Centaurea xpratensis, Centaurea pratensis) - Hybrid Knapweed, Meadow Knapweed, Protean Knapweed: Centaurea xgerstlaueri (Synonyms: Centaurea debeauxii ssp. thuillier, Centaurea xmoncktonii, Centaurea nigra x Centaurea jacea, Centaurea xpratensis, Centaurea pratensis)

The photo at left shows a close-up view of the flower head of meadow knapweed as seen along the Little River near the trailhead for the Wolf Creek Falls Trail.......June 26, 2005. Note that the outer ring of disc flowers are greatly elongated. The photo at right shows a close-up of the upper stem leaves and involucral bracts of meadow knapweed as seen along the Little River near the trailhead for the Wolf Creek Falls Trail.......June 26, 2005.

Hybrid Knapweed, Meadow Knapweed, Protean Knapweed: Centaurea xgerstlaueri (Synonyms: Centaurea debeauxii ssp. thuillier, Centaurea xmoncktonii, Centaurea nigra x Centaurea jacea, Centaurea xpratensis, Centaurea pratensis) - Hybrid Knapweed, Meadow Knapweed, Protean Knapweed: Centaurea xgerstlaueri (Synonyms: Centaurea debeauxii ssp. thuillier, Centaurea xmoncktonii, Centaurea nigra x Centaurea jacea, Centaurea xpratensis, Centaurea pratensis)

These 2 photos show close-up views of the distinctive involucral bracts of meadow knapweed as seen along the Little River near the trailhead for the Wolf Creek Falls Trail........June 26, 2005.
Paul Slichter