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Povertyweed

Iva axillaris

Also called Deer Root, Poverty Sumpweed, Poverty Weed, Deathweed, Deeproot, Devil's Weed, Small Flowered Marsh Elder

Povertyweed
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0

Povertyweed (Iva axillaris) is a North American wild herb in the daisy family that spreads by underground rhizomes and grows in disturbed, moist ground. It is a weedy wild species rather than a garden plant, and it can be hard to control once established.

Family
Asteraceae (Daisy family)
Light
Full sun
Water
Grows in moist to fairly dry soils in the wild; water when the top layer dries out.
Soil
Tolerates a wide range of soils, including poor and saline ground.
Temperature
Hardy in cold continental climates; tolerates heat and cold typical of western North America.
How easy
Easy
Safety
Toxic: The common names deathweed and deer root point to poisonous properties, though the sources do not specify the parts or effects; treat the whole plant as harmful.
Native range
W. & C. Canada to U.S.A.

About

Iva axillaris, called povertyweed or death weed, is a North American species of flowering plants in the family Asteraceae. It grows in the western and central United States and in western Canada, from British Columbia south to California and east as far as the western Great Plains in the Texas Panhandle, Nebraska, the Dakotas, and Manitoba. It has also become established in Australia, where it is considered a weed.

Iva axillaris is a wind-pollinated herb up to 60 cm (2 feet) tall, spreading by means of underground rhizomes. It has many small, lance-shaped leaves rarely more than 45 mm (1.8 inches) long. Flowers are set in the axils of the leaves rather than congregated at the tips of branches as in related species. Each head can contain 9-12 florets. Flowers bloom May to October.

Other Iva plants

Narrowleaf marsh elder · Annual marsh elder · Pensacola marsh elder · Fly marsh elder · Corbin's Sumpweed · Jesuit's bark · San Diego povertyweed · Seacoast marsh elder · Piedmont marsh elder · Marsh elder

Text excerpted from the Wikipedia article Iva axillaris 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.

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