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Flypoison (Amianthium muscitoxicum (Walter) A. Gray)

Also known as fly poison, crow poison.

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A toxic perennial, native to eastern North America, growing from a bulb.

Range - Expand

Native or Not Present

This map is based on our research. We have checked its accuracy to Level 3 ecoregions. Although this plant occurs somewhere in each of these regions, it may only occur in a small part of some or all of them.


Found in partly shaded, sandy or acidic soil in oak forests or pinelands, meadows, or bogs. Tolerates a range of moisture conditions.

Life Cycle

Blooms in early summer. Plants are self-incompatible, and mainly pollinated by beetles.


The bulb was historically crushed and mixed with sugar to kill flies.

It is occasionally cultivated as a landscaping plant, where it is valued for its attractive flower spikes and ability to be cultivated under a wide variety of conditions.

Amianthium muscitoxicum (Flypoison) | USDA PLANTS Database (About This Site)

Fly Poison | iNaturalist (About This Site)

Amianthium muscitoxicum | Biota of North America Project (BONAP) (About This Site)

Amianthium muscitoxicum (Walter) A.Gray | Plants of the World Online (POWO) (About This Site)

Amianthium muscitoxicum | NatureServe Explorer (About This Site)

Amianthium muscitoxicum | Flora of North America (About This Site)

Amianthium muscitoxicum | Missouri Plants (About This Site)

Flypoison | Maryland Biodiversity Project (About This Site)

Amianthium muscitoxicum (Walt.) Gray (Fly-poison) | Digital Atlas of the Virginia Flora (About This Site)