''Iva axillaris'', called povertyweed or death weed, is a North American species of flowering plants in the family

Asteraceae Asteraceae () is a large family (biology), family of flowering plants that consists of over 32,000 known species in over 1,900 genera within the Order (biology), order Asterales. The number of species in Asteraceae is rivaled only by the Orchi ...

. It grows in the western and central United States and in western Canada, from

British Columbia British Columbia is the westernmost Provinces and territories of Canada, province of Canada. Situated in the Pacific Northwest between the Pacific Ocean and the Rocky Mountains, the province has a diverse geography, with rugged landscapes that ...

south to

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

and east as far as the western

Great Plains The Great Plains is a broad expanse of plain, flatland in North America. The region stretches east of the Rocky Mountains, much of it covered in prairie, steppe, and grassland. They are the western part of the Interior Plains, which include th ...

in the Texas Panhandle,

Nebraska Nebraska ( ) is a landlocked U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders South Dakota to the north; Iowa to the east and Missouri to the southeast, both across the Missouri River; Ka ...

, the

Dakotas The Dakotas, also known as simply Dakota, is a collective term for the U.S. states of North Dakota and South Dakota. It has been used historically to describe the Dakota Territory, and is still used for the collective heritage, culture, geo ...

, and

Manitoba Manitoba is a Provinces and territories of Canada, province of Canada at the Centre of Canada, longitudinal centre of the country. It is Canada's Population of Canada by province and territory, fifth-most populous province, with a population ...

.''Iva axillaris'' Pursh, povertyweed
Calflora taxon report, University of California It has also become established in Australia, where it is considered a weed.Atlas of Living Australia, ''Iva axillaris'' Pursh Death Weed
/ref> ''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.Flora of North America, ''Iva axillaris'' Pursh 1813
/ref>Best, K.F. 1975. Biology of Canadian weeds, 10, ''Iva axillaris'' Pursh. Canadian Journal of Plant Science 55:293-301
includes photos, distribution map, description, ecological information Flowers bloom May to October.

References

External links

Photo of herbarium specimen at Missouri Botanical Garden, collected in Wyoming in 2014
axillaris Flora of Canada Flora of the United States Plants described in 1813 {{Heliantheae-stub