Ageratina ligustrina

Ageratina ligustrina (privet-leaved ageratina, privet-leaved snakeroot), is Mesoamerican species of evergreen flowering shrub in the sunflower family. It is widespread across much of Mexico and Central America from Tamaulipas to Costa Rica.[2][3][4]

Ageratina ligustrina
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Ageratina
Species:
A. ligustrina
Binomial name
Ageratina ligustrina
(DC.) R.M.King & H.Rob.
Synonyms[1]

Ageratina ligustrina grows to 4 metres tall, producing flat heads of daisy-like white composite flower-heads in autumn. It is not fully hardy in temperate regions.[5] In cultivation it has gained the Royal Horticultural Society's Award of Garden Merit.[6]

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.[7]

The Latin specific epithet ligustrina highlights the plant's resemblance to the privet Ligustrum, though the two plants are not believed to be closely related.[8]

Chemical Compounds

Eupalin and eupatolin are flavonol rhamnosides isolated from E. ligustrinum.[9]

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References
  1. "Ageratina ligustrina (DC.) R.M.King & H.Rob.". The Global Compositae Checklist (GCC) – via The Plant List.
  2. 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
  3. Linares, J. L. 2003 [2005]. Listado comentado de los árboles nativos y cultivados en la república de El Salvador. Ceiba 44(2): 105–268.
  4. Berendsohn, W.G., A. K. Gruber & J. A. Monterrosa Salomón. 2009. Nova silva cuscatlanica. Árboles nativos e introducidos de El Salvador. Parte 1: Angiospermae - Familias A a L. Englera 29(1): 1–438.
  5. RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN 1405332964.
  6. "RHS Plant Selector - Ageratina ligustrina". Retrieved 19 July 2013.
  7. Gledhill, David (2008). "The Names of Plants". Cambridge University Press. ISBN 9780521866453 (hardback), ISBN 9780521685535 (paperback). pp 39
  8. Harrison, Lorraine (2012). RHS Latin for gardeners. United Kingdom: Mitchell Beazley. p. 224. ISBN 9781845337315.
  9. The structures of eupalin and eupatolin. Two new flavonol rhamnosides isolated from Eupatorium ligustrinum D.C. L. Quijano, F. Malanco and Tirso Ríos, Tetrahedron, Volume 26, Issue 12, 1970, pages 2851-2859, doi:10.1016/S0040-4020(01)92863-7


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