Flower profile
Black henbane
Hyoscyamus niger
Black henbane is a wildflower that USDA PLANTS lists as introduced in the lower 48 states.
*iNaturalist research-grade observations, as of October 17, 2026.
On our lists for: North Dakota
Quick look
Henbane is a poisonous plant belonging to tribe Hyoscyameae of the nightshade family Solanaceae. Henbane is native to temperate Europe and Siberia, and naturalised in Great Britain and Ireland.
- It belongs to the Solanaceae family. iNaturalist
- USDA PLANTS describes it as an herb (forb) with a annual, biennial life cycle. USDA PLANTS
- USDA PLANTS lists it as introduced in the lower 48 states and records it in 27 states. USDA PLANTS
- NatureServe lists it as not native to North Dakota. NatureServe
- iNaturalist has 75 research-grade sightings of it in North Dakota, ranking #87 among the 109 flowers on our North Dakota list. iNaturalist
Black henbane gift ideas
Handmade black henbane gifts from independent makers.
🌱 Sample spot. Handmade gift picks from independent shops will appear here once our shop partnership is approved. These cards are placeholders, not real products.
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Black henbane art print
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Black henbane greeting card
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Black henbane mug
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Black henbane earrings
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Black henbane embroidery pattern
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Black henbane sticker
When does it bloom?
There are only a handful of North Dakota flowering records, so this chart uses records from across the U.S.
Conservation status
- Federal (U.S. ESA)
- Not listed No U.S. Endangered Species Act listing in the USFWS ECOS database. USFWS ECOS
- NatureServe global
- GNR Not yet ranked worldwide. NatureServe
- North Dakota
- No list North Dakota has no state law listing endangered or threatened plants, so we show NatureServe's North Dakota ranks instead. NatureServe: SNA, not applicable (usually because it isn't native there) in North Dakota.
- Rare elsewhere
- No other U.S. state ranks it S1, S2, SH or SX.
Checked October 17, 2026. Rankings and lists can change, so follow the links for the latest.
Can you eat it?
NC State Extension lists it as poisonous to humans (severity: high). Poisonous parts: bark, flowers, fruits, leaves, roots, sap/juice, seeds, stems. Symptoms they list: “Poison Delivery Mode: Ingestion Symptoms: Salivation, headache, nausea, vomiting, diarrhea, rapid pulse, convulsions, coma” NC State Extension
NC State Extension flags it as a problem for cats, children, dogs and horses. It isn't on the ASPCA plant list. NC State Extension
🌿 Never eat a wild plant unless you're certain of its ID; this isn't medical advice. Worried about a person? Call Poison Control at 1-800-222-1222. Worried about a pet? Call your vet.
Where does it grow?
USDA PLANTS records black henbane in 27 states.
recorded by USDA PLANTS on our state lists not recorded
See the full list of states
Colorado, Connecticut, Delaware, Idaho, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Dakota, Oregon, Pennsylvania, South Dakota, Utah, Vermont, Washington, Wisconsin, Wyoming.
North Dakota counties with USDA records: Barnes, Billings, Golden Valley, Grant, Hettinger, LaMoure, Logan, McIntosh, McKenzie, McLean, Morton, Oliver, Stark, Towner.
More North Dakota flowers
Sources
- USDA, NRCS. PLANTS Database, profile HYNI.
- iNaturalist, Hyoscyamus niger: taxonomy, research-grade observation counts and “Flowering” annotations, retrieved October 17, 2026.
- Wikipedia, Hyoscyamus niger (lead quoted under CC BY-SA 4.0).
- North Dakota: North Dakota state noxious weeds (N.D. Admin. Code 7-06-01-02), as listed by the ND Department of Agriculture.
- USFWS, ECOS species database (ESA listing check), October 17, 2026.
- NatureServe Explorer, Hyoscyamus niger (global and state ranks).
- Edibility and toxicity: NC State Extension.
- Photo: Wendy McCrady via iNaturalist · CC BY 4.0 · resized.