Ageratum conyzoides

Common card · No. 462789

Ageratum conyzoides (billygoat-weed, chick weed, goatweed, whiteweed, mentrasto) is native to Tropical America, especially Brazil, and is an invasive weed in many other regions. It is an herb that is 0.5–1 m. high, with ovate leaves 2–6 cm long, and flowers are white to mauve. In Vietnamese, the plant is called cứt lợn (meaning "pig feces") due to its growth in dirty areas.