Ageratina wrightii (Wright's snakeroot)[4] is a North American species of plants in the family Asteraceae.

It is native to the southwestern United States (New Mexico, southern Arizona, western Texas) and northern Mexico (Tamaulipas, Nuevo León, Coahuila, Chihuahua, San Luis Potosí, Durango, Zacatecas, Aguascalientes, Jalisco).

[5] Ageratina is derived from Greek meaning 'un-aging', in reference to the flowers keeping their color for a long time.

[6] The plant is named for American botanist Charles Wright (1811-1885).

[7] Data related to Ageratina wrightii at Wikispecies