Eupatorium ligustrinum

Ageratina ligustrina
Ageratina ligustrina
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Asterids
Order:	Asterales
Family:	Asteraceae
Subfamily:	Asteroideae
Tribe:	Eupatorieae
Genus:	Ageratina
Species:	A. ligustrina
Binomial name
Ageratina ligustrina (DC.) R.M.King & H.Rob.
Synonyms
Synonymy Eupatorium biceps Klotzsch ex Vatke Eupatorium erythropappum B.L.Rob. Eupatorium ligustaefolium DC. Eupatorium ligustifolium DC. Eupatorium ligustrinum DC. Eupatorium micranthum Less. 1830 not Lag. 1816 Eupatorium myriadenium Schauer Eupatorium semialatum Benth. Eupatorium weinmannianum Regel & Körn.

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.

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. In cultivation it has gained the Royal Horticultural Society's Award of Garden Merit.

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.

Eupalin and eupatolin are flavonol rhamnosides isolated from E. ligustrinum.

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