About
Biennial wormwood is a widespread weedy annual or biennial, unusual in its genus for having little or no scent.
Care at a glance
- Pet safety
- Not recorded. We have no source on whether this plant is safe for cats, dogs or other pets — that is not the same as safe. Keep it out of reach until you have checked.
- People
- Not recorded.
- Mature size
- Up to 2 m tall.
Field notes
Morphology
Single erect green to reddish stem up to 2 m tall, mostly hairless. Frilly leaves up to 13 cm long are deeply divided into narrow, toothed lobes. Small globe-shaped green to yellow flower heads are packed into dense columnar clusters mixed with leaves; the fruit is a tiny achene.
Distribution & habitat
Probably native to northwestern North America (British Columbia, Washington, Oregon); naturalised in Western Europe and in eastern and southern North America, so widely established that its origin is uncertain.
History & etymology
The small seeds have been eaten, and the plant has been used in folk medicine for stomach cramps, colic, menstrual pain and wounds; seeds mixed with molasses were used against intestinal worms.
Habitat
- Altitude
- Not recorded
- Altitude class
- —
- Native to
- Canada, United States
Cultivation
- Difficulty
- Not recorded
Text adapted from Wikipedia, CC BY-SA 4.0.
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