A common weed in disturbed areas, stinking chamomile (Anthemis cotula, Asteraceae) lives up to its name. When the leaves are crushed they give off a pungent odor. Personally I don’t find the smell to be too repulsive, but I could see how someone else might.
Like many invasive weeds this plant came from Eurasia. Since being introduced to North America, it has spread across the entire continent. It can often be found along roads, fields, and near buildings, like outside the greenhouse where this individual was growing.