Ageratina altissima (L.) R.M.King H.Rob.

White Snakeroot


Family: Compositae

Genus: Ageratina

Category: Perennial

Zones: 3 to 7

Size: 1 to 3' tall

Exposure: Sun, Filtered Sun, Part Shade

Description: 

Tall stems with flat-topped clusters of greyish-white flowers in summer. Leaves opposite, long and pointed.

Cultivars: 

'Snowball' - white flowers

Subordinate taxa: 

History: 

Published in Phytologia 19: 212 in 1970.

Native to the US and Canada.

Previously placed in the genus Eupatorium.

Basionym Ageratum altissimum.


Sources of Information

© 2010-12 Lisa J. Miner