We are just so damn good at doing this sort of thing. It is almost laughable.
>>The image of a tumbleweed rolling across a dusty Western expanse is as American as apple pie—but, of course, less palatable. But tumbleweed are, in actual fact, invasive plants that can wreak havoc upon native ecosystems, agriculture and property—just ask residents of the town of Victorville, California, which was buried by an invasion of tumbleweeds last year.
Now, as Peter Dockrill reports for Science Alert, a new study has taken a closer look at a relatively new tumbleweed species already causing problems in the Golden State—and found that the plant’s genetic makeup may help it become even more invasive in the future.
Salsola ryanii is a hybrid of two other invasive tumbleweeds: Salsola tragus, which is native to Russia and China and invasive in 48 U.S. states, and Salsola australis, which is native to Australia and South Africa and invasive in California and Arizona. Salsola ryanii was first identified 15 years ago, and scientists initially predicted that it would soon go extinct because it did not seem well adapted to the hot, dry conditions of the West. But as it turns out, Salsola ryanii thrived in California; over the course of just 10 years, it spread from two to 15 areas. It can also grow taller than its parent species, reaching a towering height of six feet.
Worryingly, Salsola tragus, one of the parent species of Salsola ryanii, has shown resistance to glyphosate, a common herbicide. Learning more about S. ryanii could help scientists figure out a way to suppress the plant before it too starts tumbling through dozens of states.<<
https://www.smithsonianmag.com/smart-news/monster-hybrid-tumbleweed-out-growing-its-parent-species-180973072/