Russian thistleRussian thistle
a spiny weed (Salsola kali) of the goosefoot family: it matures into a spherical tumbleweed
Any of various prickly plants of the genus Salsola, especially S. tragus, a tumbleweed that is native to Eurasia and widespread in western North America.
(plural Russian thistles)
- A prickly shrublike annual, Kali tragus (often erroneously referred to as Salsola kali, a synonym for Kali turgida), which is the best-known kind of tumbleweed.