![](https://extension.arizona.edu/sites/extension.arizona.edu/files/styles/flexslider_full/public/images/Centaurea-solstitialis%2C-Yellow-Star-thistle.jpg?itok=wU7HKSg6)
Cochise Noxious Weeds Program
The spread of noxious weeds on public, state trust and private lands in southeastern Arizona poses risks to native and rangeland animals, threatens biodiversity and native plant species, damages park land and natural resources, and causes economic hardship for farmers, ranchers, and municipalities. The geographic region comprising Cochise, Graham and Greenlee counties in Arizona has relatively small infestations of noxious weeds compared to other areas in the West. This gives us a unique opportunity to be proactive and control weeds before it becomes economically not feasible to do so.
Contact: Kim McReynolds
![](https://extension.arizona.edu/sites/extension.arizona.edu/files/styles/large/public/az1510-2016-onion-small.jpg?itok=i_P7r0JV)
Onionweed (Asphodelus fistulosus) was introduced as an ornamental and is now a federally listed noxious weed due to its invasive properties. Note the flower is like our native onions, but the plants have fibrous roots instead of bulbs, and they don’t smell like onions.