- Hyoscyamus niger 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.
- Ecological Threat
- Hyoscyamus niger is native to the Mediterranean and is poisonous to most mammals. It has been used medicinally for hundreds of years.
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EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org
State Invasive List - This map identifies those states that list this species on their invasive species list. For more information, visit Invasive.org
Invasive Listing Sources
- California Noxious Weeds
- Colorado Noxious Weeds
- Idaho Noxious Weeds
- John Randall, The Nature Conservancy, Survey of TNC Preserves, 1995.
- Nevada Noxious Weeds
- New Mexico Noxious Weeds
- South Dakota Noxious Weeds
- Utah Noxious Weeds
- Washington Noxious Weeds
- WeedUS - Database of Plants Invading Natural Areas in the United States
|Common Name Reference:|| USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.|
|Scientific Name Reference:||USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.|