Chalk Knapweed.

Chalk Knapweed.

Observation - Chalk Knapweed. - UK and Ireland. Description: A knapweed on chalk soil, observed back in August. These have often been identified as C. nigra but see the ID notes. Stace calls this Chalk Knapweed; iSPot calls it Slender Knapweed. (In the ID notes, for pectitane please read pectinate. Slip of

A knapweed on chalk soil, observed back in August. These have often been identified as C. nigra but see the ID notes. Stace calls this Chalk Knapweed; iSPot calls it Slender Knapweed. (In the ID notes, for "pectitane" please read "pectinate". Slip of the fingers.)