Sulphur cinquefoil

Black henbane is a native of Europe that was introduced in the U.S. as an ornamental and now infests pastures, fencerows, roadsides and waste areas.

 Common mullein a native of Asia but was introduced from Europ. it is common throughtout the temperate parts of North America. along river bottoms, in pastures, meadows, fence rows and waste areas, especially on gravelly soils.  is a tap-rooted biennial forb in Scrophulariaceae (Figwort) family
Yellow, 5-petaled flowers born on large terminal spikes
Large, densely wooly leaves narrow towards the apex of the plant
Can grow to be 10 feet tall but more commonly found in the 2-6 foot range
Invasive in disturbed soils and on well-drained rocky soils.

Growth Habit: Annual or biennial, 1 to 3 feet tall.

Leaves: Coarsely-toothed to shallowly lobed and hairy. Foliage has a foul odor.

Flowers: On long racemes in axils of upper leaves, brownish-yellow with a purple center and purple veins.

Other: Black henbane contains hyoscyamine and other alkaloids which have caused occasional livestock poisoning. However, the plant is usually not grazed by animals and is consumed only when more palatable forage is not available. Henbane alkaloids have been used in the past, and are currently used, as medicines at controlled dosages. It is considered a poisonous plant to humans.

Status: County Declared Noxious Weed, Category 3. Regional, no tolerance of further spread, control and management of current infestations and aggressive control in areas otherwise free of these weeds.

Control: Black henbane can be mechanically removed but wear gloves if handling this plant to avoid skin irritation. Chemical control is effective on large infestations. FCWP offers a 40 percent Cost Share on chemicals for controlling this species. Contact your local weed and pest office for further treatment recommendations.

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Mary Ellen (Mel) Harte,