Ageratum houstonianum, commonly known as flossflower, bluemink, goatweed, blueweed, pussy foot or Mexican paintbrush, is a cool-season annual plant[2][3] often grown as bedding in gardens.

[6] The plant is native to Central America in Guatemala and Belize, and adjacent parts of Mexico, but has become an invasive weed in other areas.

Today, it is widely used as an ornamental plant for summer borders and balcony boxes, high varieties also as cut flowers.

Preferring cool soils and exposure in full sun, high varieties reach stature heights up to 60 centimetres (24 in).

This chemical triggers the next molting cycle to prematurely develop adult structures, and can render most insects sterile if ingested in large enough quantities.