North America Non-native Plant

Henbane

Botanical name: Hyoscyamus muticus

USDA symbol: HYMU3

Native status: Not native but doesn't reproduce and persist in the wild

Henbane (Hyoscyamus muticus): A Mysterious and Potentially Dangerous Plant When it comes to the world of plants, some species remain shrouded in mystery, and Hyoscyamus muticus—commonly known as henbane—is certainly one of them. This lesser-known member of the henbane family has gardeners and botanists alike scratching their heads, not just ...

Henbane (Hyoscyamus muticus): A Mysterious and Potentially Dangerous Plant

When it comes to the world of plants, some species remain shrouded in mystery, and Hyoscyamus muticus—commonly known as henbane—is certainly one of them. This lesser-known member of the henbane family has gardeners and botanists alike scratching their heads, not just because of its elusive nature, but also because of the serious safety concerns that come with any plant in the Hyoscyamus genus.

What We Know (And Don’t Know) About This Henbane

Here’s where things get a bit tricky: reliable information about Hyoscyamus muticus specifically is surprisingly scarce. While the botanical name suggests it’s related to the more well-known black henbane (Hyoscyamus niger), the specific details about this particular species—including its native range, growth habits, and appearance—remain largely undocumented in readily available horticultural sources.

The geographical distribution of Hyoscyamus muticus is currently unknown, making it difficult to determine where this plant naturally occurs or whether it might be suitable for cultivation in your area.

The Big Red Flag: Toxicity Concerns

Here’s what we absolutely must address upfront: all plants in the Hyoscyamus genus are highly toxic. These plants contain dangerous alkaloids that can be lethal to humans and animals if ingested. Even handling the plants can potentially cause skin irritation in sensitive individuals.

This toxicity isn’t just a minor concern—it’s a deal-breaker for most home gardens, especially those with children, pets, or curious wildlife visitors.

Should You Consider Growing Henbane?

Given the combination of limited information about Hyoscyamus muticus specifically and the serious safety risks associated with all henbane species, most gardeners should steer clear of this plant entirely. The potential dangers far outweigh any possible benefits, particularly when there are countless safer native alternatives available for any garden need you might have.

Better Alternatives for Your Garden

Instead of risking the unknown with Hyoscyamus muticus, consider these safer options:

  • If you’re looking for interesting foliage plants, explore native herbs and wildflowers in your region
  • For historical or medicinal plant gardens, work with well-documented, less dangerous species
  • Consult with local native plant societies to find fascinating and safe alternatives that support local ecosystems

The Bottom Line

Sometimes in gardening, the most responsible advice is simply don’t. With Hyoscyamus muticus, the combination of limited reliable information and the inherent dangers of the henbane family make this a plant best left to specialized researchers and botanical institutions with proper safety protocols.

Your garden—and your family’s safety—will be much better served by choosing well-documented, non-toxic native plants that can provide beauty, ecological benefits, and peace of mind. After all, the best garden is one where everyone can explore and enjoy nature safely.

Henbane

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Solanales

Family

Solanaceae Juss. - Potato family

Genus

Hyoscyamus L. - henbane

Species

Hyoscyamus muticus L. - henbane

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA