Ageratina havanensis explained

Ageratina havanensis, the Havana snakeroot or white mistflower,^[1] is a species of flowering shrub in the family Asteraceae, native to the south-western United States (Texas), Cuba, and north-eastern and east-central Mexico (Veracruz, Tamaulipas, Coahuila, Nuevo León, Hidalgo, San Luis Potosí, Puebla, Guanajuato, Querétaro).^[2] Unlike many other species of Ageratina, it is evergreen.^{[3] [4]}

Etymology

Ageratina is derived from Greek meaning 'un-aging', in reference to the flowers keeping their color for a long time. This name was used by Dioscorides for a number of different plants.^[5]

Notes and References

1. https://npsot.org/wp/wilco/2013/02/05/ageratina-havanensis-white-mistflower/ Williamson County Chapter (NPSOT-Wilco) Native Plant Society of Texas, Ageratina havanensis – White Mistflower
2. Book: George Diggs . Barney Lipscomb . Robert O'Kennon . Shinners & Mahler's Illustrated Flora of North Central Texas. 978-1-889878-01-0. 1999. Botanical Research Institute of Texas .
3. Turner, B. L. 1997. The Comps of Mexico: A systematic account of the family Asteraceae, vol. 1 -- Eupatorieae. Phytologia Memoirs 11: i–iv, 1–272
4. Turner, B. L. 2010. Phytologia 92:388-399
5. Gledhill, David (2008). "The Names of Plants". Cambridge University Press. (hardback), (paperback). pp 39