Burdock, Arctium lappa.

Burdock, Arctium lappa.

Burdock, Arctium lappa.

Studio shot of thistle-like flowers of Arctium lappa, Greater burdock, on a leafy syem against a white background.

Scabious, Caucasian scabious, Scabiosa.

Scabious, Scabiosa.

Scabious, Pterocephalus lasiospermus.

Scabious, Scabiosa atropurpurea 'Chile Black'.

Scabious, Scabiosa australis.

Scabious, Scabiosa atropurpurea 'Chile Black'.

Scabious, Scabiosa 'Summer Sundae'.

Scabious, Scabiosa atropurpurea 'Chile Black'.

Scabious, Field scabious, Knautia arvensis.

Scabious, Scabiosa atropurpurea 'Chile Black'.

Scabious, Scabiosa caucasica 'Staefa'.

Scabious, Scabiosa caucasica 'Staefa'.