An illustration of a ray-floret of the cornflower. Centaurea cyanus ('Cornflower, Bachelor's button, Basket flower, Bluebottle, Boutonniere flower, Hurtsickle) is a small annual flowering plant in the family Asteraceae, native to Europe.

Ray-floret of a Cornflower

An illustration of a ray-floret of the cornflower. Centaurea cyanus ('Cornflower, Bachelor's button,…

Typical form of Corolla. 12, Ligulate (daisy, ray floret).

Daisy Floret

Typical form of Corolla. 12, Ligulate (daisy, ray floret).

An illustration of a ray-floret of the 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. The fruit is nut like, cylindrical and hairy, 5-6mm in size. It has a tap root. The stem has long stiff hairs angled downwards. There are no stipules. The leaves form a basal rosette, are paired on the stem, the lowest typically 300mm long, spear shaped, whereas the upper are smaller.

Ray-floret of Field Scabious

An illustration of a ray-floret of the field scabious. Knautia arvensis, commonly known as Field Scabious,…

An illustration of a ray-floret of the 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. The fruit is nut like, cylindrical and hairy, 5-6mm in size. It has a tap root. The stem has long stiff hairs angled downwards. There are no stipules. The leaves form a basal rosette, are paired on the stem, the lowest typically 300mm long, spear shaped, whereas the upper are smaller.

Ray-floret of Field Scabious

An illustration of a ray-floret of the field scabious. Knautia arvensis, commonly known as Field Scabious,…

An illustration of a ray-floret of the senecio flower. Senecio is a genus of the daisy family (Asteraceae) that includes ragworts and groundsels. The flower heads are normally rayed, completely yellow, and the heads are borne in branched clusters. Though of late the genus has been reviewed and split up, it still contains a vast number of species (about 1,500) of extremely wide form including leaf succulents, stem and tuber succulents, annuals, perennials, aquatic forms, climbers, shrubs and small trees. Some species produce natural pesticides (especially alkaloids) to deter or even kill animals that would eat them.

Female ray-floret of the Senecio

An illustration of a ray-floret of the senecio flower. Senecio is a genus of the daisy family (Asteraceae)…