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Descurainia pinnata
Also called Tansy Mustard, Pinnate Tansy Mustard, Western Tansy Mustard, Green Tansymustard, Green Tansy Mustard, Pinnate Tansymustard, Tansymustard
Western tansymustard is a hairy, branching annual mustard native to North America, common in deserts, dry fields and disturbed ground. It is a hardy weed that grows from seed and does best in full sun and poor, dry soil.
Descurainia pinnata is a species of flowering plant in the family Brassicaceae known by the common names southeastern tansymustard and western tansymustard. It is native to North America, where it is widespread and found in varied habitats. It is especially successful in deserts and dry fields. It is a hardy plant which easily becomes weedy, and can spring up in disturbed, barren sites with bad soil.
This tansymustard is toxic to grazing animals in large quantities due to nitrates and thiocyanates; however, it is nutritious in smaller amounts. Cattle that consume the plant experience numbing of the tongue, begin to hit their heads against hard objects, and can even lose vision. The plant is bitter and the seeds are said to taste somewhat like black mustard and were utilized as food by Native American peoples such as the Navajo. In Korea, it has been found to have been used historically as medicine since the 1950s when the plant was introduced.
Text excerpted from the Wikipedia article Descurainia pinnata by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
