Invasive Plant Details
Back to Full ListBlack Henbane
Latin Name: Hyoscyamus niger
Identification
Flower: Pale yellow with dark purple veins, funnel-shaped, and somewhat sticky. Flowers bloom from mid to late summer.
Leaves: Large, oval to oblong, deeply lobed, and hairy with a foul smell when crushed.
Stems: Erect, sticky, and hairy, growing up to 1 meter tall.
Growing Environment: Prefers disturbed soils, roadsides, and waste areas.
Growth Habit: A biennial herb that grows to about 1 meter in height. In its first year, it forms a rosette of leaves, and in the second year, it sends up a tall flowering stalk. The plant has a sprawling, weedy appearance and can form dense stands in areas of disturbed soil. In situ, it often appears in waste areas or alongside roads, forming patches of sickly green and purple.
Impacts on Environment
Impacts: Invasive in disturbed soils, particularly in dry and open areas.