Purging flax

Linum catharticum
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Malpighiales
Family:	Linaceae
Genus:	Linum
Species:	L. catharticum
Binomial name
Linum catharticum L.
Synonyms
Cathartolinum catharticum (L.) Small Cathartolinum pratense Rchb. nom. illeg. Nezera cathartica (L.) Nieuwl.

Linum catharticum, also known as purging flax, or fairy flax, is an herbaceous flowering plant in the family Linaceae, native to Great Britain, central Europe and Western Asia. It is an annual plant and blooms in July and August.

...
Wikipedia