Stinknet is an invasive plant native to South Africa, now spreading rapidly across the southwestern United States. Known for its strong odor and dense growth, it outcompetes native vegetation, disrupts habitats, and increases fire risk.

Stinknet grows after cool-season rains, starting as small rosettes and maturing into plants with flower heads that produce hundreds of seeds each, enabling rapid spread.

Stinknet grows in sunny, open areas, thriving in disturbed areas like roadsides. It is particularly abundant in the southwestern United States, including Arizona and California.

Stinknet is a problem because it spreads rapidly, forming dense patches that outcompete native plants and disrupt ecosystems. Its high flammability increases wildfire risks, while its allergens can cause respiratory and skin reactions in humans.