ragged-robin

Nectar plants such as perennial wallflower and ragged-robin will attract species including peacocks and large "cabbage" and small whites.

Are butterflies the UK's most beautiful endangered species? | Dan Flenley 2011

Behind, before, in the branches of the trees, amongst the blades of grass, creeping under the mushrooms, swinging on the foxgloves, and clinging to the ragged-robin, were the fairies.

Little Folks (Septemeber 1884) A Magazine for the Young Various

Flowers of the edge, meadow-sweet, ragged-robin and yellow flags, dipped into the water; willows spread their thin green over the embattled white and blue of the sky; here and there a rat plunged or a bird fled shrieking; bushes of wild roses flung out their branches, and everywhere the heat and the odours of a rich open land proclaimed the fulness of the midland summer.

Lady Connie Humphry Ward 1885

Well, when our new maid came, on the supposition that Miss Woodbourne took care of her own clothes, she never touched them; and as Margaret's work was not endowed with the fairy power of lasting for ever, I soon grew as ragged as any ragged-robin in the hedge.

Abbeychurch Charlotte Mary Yonge 1862