black henbane |
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| Solanales > Solanaceae > Hyoscyamus niger L.
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| Synonym(s): henbane |
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. |
Identification, Biology, Control and Management Resources
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Selected Images from Invasive.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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Foliage;
Mary Ellen (Mel) Harte, , Bugwood.org
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Foliage;
Mary Ellen (Mel) Harte, , Bugwood.org
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Plant(s);
Steve Dewey, Utah State University, Bugwood.org
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Plant(s);
Mary Ellen (Mel) Harte, , 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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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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Flower(s);
Jan Samanek, State Phytosanitary Administration, Bugwood.org
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Feature(s); Flowers and seed capsules
Steve Dewey, Utah State University, Bugwood.org
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Seed(s);
Jan Samanek, State Phytosanitary Administration, Bugwood.org
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Seed(s);
Jan Samanek, State Phytosanitary Administration, Bugwood.org
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Seed(s);
Steve Hurst, USDA NRCS PLANTS Database, Bugwood.org
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Diagram or Graphic; 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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Invasive Reference(s):
Check Invasive.org for most current lists.
- California - Noxious Weed Law
- Colorado - Noxious Weed Law
- New Mexico - Noxious Weed Law
- Nevada - Noxious Weed Law
- Washington - Noxious Weed Law
- Invasive Plants: Western North America
- Invasive Plants: Guide to Identification and the Impacts and Control of Common North American Species
External Links
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