page_title: Sisymbrium altissimum
hierarchical_section_title: Sisymbrium altissimum
caption_attribution_description: English: Tumblemustard (Sisymbrium altissimum) 4-fold yellow flower, close. At 7400ft, start of Pine Creek trail, Eastern Sierra, California USA.
context_page_description: Sisymbrium altissimum is a species of Sisymbrium. The plant is native to the western part of the Mediterranean Basin in Europe and Northern Africa and is widely naturalized throughout most of the world, including all of North America. It was probably introduced into North America by a contaminant crop seed. The plant grows in soils of all textures, even sand. The plant germinates in winter or early spring. The blooming time is lengthy, and after maturity the plant forms a tumbleweed. Common names of the plant include Jim Hill mustard, after James J. Hill, a Canadian-American railroad magnate, tall tumblemustard, tall mustard, tumble mustard, tumbleweed mustard, tall sisymbrium, and tall hedge mustard.
context_section_description: Sisymbrium altissimum is a species of Sisymbrium. The plant is native to the western part of the Mediterranean Basin in Europe and Northern Africa and is widely naturalized throughout most of the world, including all of North America. It was probably introduced into North America by a contaminant crop seed. The plant grows in soils of all textures, even sand. The plant germinates in winter or early spring.  The blooming time is lengthy, and after maturity the plant forms a tumbleweed.  Common names of the plant include Jim Hill mustard, after James J. Hill, a Canadian-American railroad magnate, tall tumblemustard, tall mustard, tumble mustard, tumbleweed mustard, tall sisymbrium, and tall hedge mustard.
caption: Sisymbrium altissimum closeup of tiny flower
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