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.orgView All Images at Invasive.org


Foliage;
Mary Ellen (Mel) Harte, , Bugwood.org
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Foliage;
Mary Ellen (Mel) Harte, , Bugwood.org
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Feature(s); Flowers and seed capsules
Steve Dewey, Utah State University, Bugwood.org
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Plant(s);
Steve Dewey, Utah State University, Bugwood.org
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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
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Seed(s);
Steve Hurst, USDA NRCS PLANTS Database, Bugwood.org
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Seedling(s);
Jan Samanek, State Phytosanitary Administration, Bugwood.org
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Plant(s);
Jan Samanek, State Phytosanitary Administration, Bugwood.org
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Plant(s);
Jan Samanek, State Phytosanitary Administration, Bugwood.org
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Plant(s); in flower
Jan Samanek, State Phytosanitary Administration, Bugwood.org
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Flower(s);
Jan Samanek, State Phytosanitary Administration, Bugwood.org
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Plant(s); in flower
Jan Samanek, State Phytosanitary Administration, Bugwood.org
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Flower(s);
Jan Samanek, State Phytosanitary Administration, Bugwood.org
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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
 


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.