black henbane	USDA PLANTS Symbol: HYNI U.S. Nativity: Exotic Habit: Forbs/Herbs
Hyoscyamus niger L.

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Taxonomic Rank: Magnoliopsida: Solanales: Solanaceae
Synonym(s): henbane
Native Range: Africa, temp. & trop. Asia, Europe (GRIN)
Black henbane is an annual or biennial plant that can grow to 3 ft. (1 m) in height. The fetid smelling leaves are alternate, simple, toothed, up to 8 in. (20 cm) long and 6 in. (15 cm) wide. In the early season (annual), or first year of growth (biennial) the plant is represented by a rosette. Flowering occurs in spring to early fall. Flowers are cream to green, five-lobed, 2 in. (5 cm) wide and have purple throats. Seeds are small and black. Prolific seed production increases the spread of this plant, as a single plant can produce up to half a million seeds. Black henbane is native to the Mediterranean and is poisonous to most mammals. It has been used medicinally for hundreds of years.

Selected Images from Invasive.org

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Foliage; Mary Ellen (Mel) Harte, , Bugwood.org Additional Resolutions & Image Usage	Foliage; Mary Ellen (Mel) Harte, , Bugwood.org Additional Resolutions & Image Usage	Feature(s); Flowers and seed capsules Steve Dewey, Utah State University, Bugwood.org Additional Resolutions & Image Usage	Plant(s); Steve Dewey, Utah State University, Bugwood.org Additional Resolutions & Image Usage
Plant(s); Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 3: 169. USDA PLANTS Database, USDA NRCS PLANTS Database, Bugwood.org Additional Resolutions & Image Usage	Seed(s); Steve Hurst, USDA NRCS PLANTS Database, Bugwood.org Additional Resolutions & Image Usage	Seedling(s); Jan Samanek, State Phytosanitary Administration, Bugwood.org Additional Resolutions & Image Usage	Plant(s); Jan Samanek, State Phytosanitary Administration, Bugwood.org Additional Resolutions & Image Usage
Plant(s); Jan Samanek, State Phytosanitary Administration, Bugwood.org Additional Resolutions & Image Usage	Plant(s); in flower Jan Samanek, State Phytosanitary Administration, Bugwood.org Additional Resolutions & Image Usage	Flower(s); Jan Samanek, State Phytosanitary Administration, Bugwood.org Additional Resolutions & Image Usage	Plant(s); in flower Jan Samanek, State Phytosanitary Administration, Bugwood.org Additional Resolutions & Image Usage
Flower(s); Jan Samanek, State Phytosanitary Administration, Bugwood.org Additional Resolutions & Image Usage	Seed(s); Jan Samanek, State Phytosanitary Administration, Bugwood.org Additional Resolutions & Image Usage	Seed(s); Jan Samanek, State Phytosanitary Administration, Bugwood.org Additional Resolutions & Image Usage

EDDMapS Distribution:
This map is incomplete and is based only on current site and county level reports made by experts and records obtained from USDA Plants Database. For more information, visit www.eddmaps.org

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State(s) Where Reported invasive.
Based on state level agency and organization lists of invasive plants from WeedUS database.

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U.S. National Parks where reported invasive:

Theodore Roosevelt National Park (North Dakota)
Yellowstone National Park (Wyoming)

Invasive Listing Sources:

John Randall, The Nature Conservancy, Survey of TNC Preserves, 1995.