Best time to see: Jun to mid Aug
Key facts
A once-common cornfield weed, now probably extinct in the wild as a result of modern herbicides
Grows more than 1m tall within crops, with trumpet-shaped flowers up to 4 cm across
© Owen Keen
A once-common cornfield weed, now probably extinct in the wild as a result of modern herbicides
Grows more than 1m tall within crops, with trumpet-shaped flowers up to 4 cm across