Species of flowering plant
Flower detail Ageratina herbacea North American species of flowering plants in the family Asteraceae known by the common names fragrant snakeroot and Apache snakeroot .[ 3] Sonoran , Mojave , and Chihuahuan Deserts ) of the southwestern United States (southeastern California , southern Nevada , southern Utah , Colorado , Arizona , New Mexico , western Texas ) and northern Mexico (Baja California , Chihuahua , Coahuila , Sonora ). It grows in rocky slopes in conifer forests and woodlands.[ 4] [ 5] [ 6] [ 7]
Ageratina herbacea is a perennial herb growing a green, fuzzy stem from a woody caudex to heights between about 50 and 70 centimeters. The leaves are yellow to green or grayish and are triangular to heart-shaped. The inflorescence is a cluster of fuzzy flower heads under a centimeter long containing long, protruding white disc florets and no ray florets. The fruit is an achene a few millimeters long with a rough bristly pappus .[ 8]
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.[ 9]
References
^ "NatureServe Explorer - Ageratina herbacea" . NatureServe Explorer Ageratina herbacea . NatureServe. 2022-06-22. Retrieved 22 Jun 2022 .^ "Ageratina herbacea (A.Gray) R.M.King & H.Rob." . The Global Compositae Checklist (GCC) – via The Plant List .World Flora Online ^ NRCS . "Ageratina herbacea " . PLANTS Database . United States Department of Agriculture (USDA).^ Nesom, Guy L. (2006). "Ageratina herbacea " . In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA) Missouri Botanical Garden , St. Louis, MO & Harvard University Herbaria , Cambridge, MA. ^ "Ageratina herbacea " . County-level distribution map from the North American Plant Atlas (NAPA) . Biota of North America Program (BONAP). 2014.^ "Ageratina herbacea" . Calflora . Berkeley, California: The Calflora Database.^ 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
^ Hickman, James C., ed. (1993). "Ageratina herbacea " . The Jepson Manual: Higher Plants of California . University and Jepson Herbaria. ^ Gledhill, David (2008). "The Names of Plants". Cambridge University Press. ISBN 9780521866453 (hardback), ISBN 9780521685535 (paperback). pp 39
External links
Ageratina herbacea CalPhotos photo database, University of California, Berkeley
