A yellow tuft alyssum field in full bloom. Starting in 2002, a Texas company called Viridian resources planted this variety of alyssum throughout Oregon's Illinios Valley. It was part of a nickel mining venture.
Oregon Department of Agriculture
Suzanne Vautier pulls an alyssum plant growing on the banks of the Ilinois River. The species escaped the fields where it was planted and began spreading.
A Howell's mariposa lily. Botanists are worried yellow tuft alyssum could crowd out rare native wildflowers llike this one in Southern Oregon.
Cobra lilies, californica darlingtonia. Southern Oregon is a hotspot for plant diversity thanks to a rare type of soil, called serpentine. Invasive Yellow Tuft Alyssum is also specialy adapted to serpentine soils.
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