Russian thistle

From Russian + thistle: believed to have been introduced to North America from Russia, and is prickly like a thistle.

1Any of several species of genus Salsola and its close relatives, prickly shrublike annuals, especially Salsola tragus (syn. Kali tragus), which is the best-known kind of tumbleweed in the US.
2AustraliaSalsola australis

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