Hyoscyamus niger. Henbane.

Life-form & Growth Form:

Hemicryptophyte. Herbaceous biennial/monocarpic perennial. Little/no vegetative spread.  

Flowering period: 

June to October.

Habitats: 

Sandy sea-cliffs. Calcareous soils (overlying chalk). Coastal sandhills/sandy open areas/ waste ground. Disturbed ground e.g. rabbit warrens, building sites. Lowland.  

Threats:

Increased use of herbicides. Habitat loss as a result of coastal development. Uprooted byfarmers as it is poisonous to animals. Cyclical decline in Rabbit populations may affect abundance as requires periodically disturbed ground to trigger seed germination. 

Static distribution map:
Hyoscyamus niger
Hyoscyamus niger
For an interactive map follow this link to the BSBI webpage