Knautia arvensis
（重定向自Field Scabious）
Knautia arvensis, commonly known as field scabious, is a species in the genus Knautia.
It is a perennial plant that grows between 25 and 100 cm. It prefers grassy places and dry soils, avoiding heavy soils, and flowers between July and September. The flowered head is flatter than similar species devils bit scabious and small scabious. There are 4 stamens in each flower, and 1 notched long stigma.