|Parthenium incanum growing in Walnut Canyon at Carlsbad Caverns National Park, New Mexico|
The plant is native to North America, from the Southwestern United States through Northern, Central, and Southwestern Mexico. Habitats include desert grasslands including in the Chihuahuan Desert, on dry gravel slopes, and on plains.
Parthenium incanum grows from 1.5–3 feet (0.46–0.91 m) in height and width. Its foliage is a pubescent grayish-white. Small white flower clusters appear from July to October.
The Jicarilla Apache used mariola as a traditional medicinal plant. It was prepared by boiling the plant's leaves, and the solution was then was rubbed over a pregnant woman's abdomen to relieve discomfort.
- Nova Genera et Species Plantarum 4:260, t. 391. 1820 "Plant Name Details for Parthenium incanum". IPNI. Retrieved June 30, 2010.
- "Parthenium incanum". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 19 January 2018.
- Lady Bird Johnson Wildflower Center Native Plant Information Network (NPIN): Parthenium incanum (mariola)
- University of Michigan at Dearborn: Ethnobotany of Parthenium Incanum
- Opler, Morris E. (1946). Childhood and youth in Jicarilla Apache society. Publications of the Frederick Webb Hodge Anniversary Fund (Vol. 5). Los Angeles: The Southwest Museum Administrator of the Fund.
- Aggie-horticulture.edu—Texas Native Plants Database: Mariola (Parthenium incanum)
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