They spread via seeds and stray plant ... purple flowers that bob over black-mottled bracts — hence the name. It's considered invasive and noxious across most U.S. states, including California ...

Purple needlegrass is a popular native grass for small gardens or open meadows, but its long prickly awns can be a nuisance ...

Photos courtesy MISC In 2003, Lori Buchanan, manager of the Molokai/Maui Invasive Species Committee, investigated a glossy-leaved plant with pinkish-purple flowers. She had seen it growing as a ...