handsome plant came in the first place from north America. It
is well established in many parts of Europe, including Britain.
Its tall stems and large yellow flowers are a conspicuous feature
of many sand dunes, and are often seen on railway embankments,
and on bombed sites in towns. The leaves are undivided, soft and
hairy. The flowers open in the evening and become slightly fragrant.
June to September is the flowering period.