Lady Bird Johnson Wildflower Center - The University of Texas at Austin information

 Native Plant Database

Ageratina altissima var. altissima


White snakeroot


Asteraceae (Aster Family)



Ageratina altissima var. altissima (White snakeroot)
Bransford, W.D. and Dolphia
An erect, much-branched perennial up to 4 ft. tall. Large, opposite, pointed-oval leaves. Flowers are tiny, pure white, and in flattish clusters near the top of the stalk.


Image Gallery:

8 photo(s) available

Plant Characteristics

Duration: Perennial
Habit: Herb
Flower:
Fruit:
Size Class: 3-6 ft.

Bloom Information

Bloom Color: White
Bloom Time: Aug , Sep , Oct

Distribution

USA: AL , AR , CT , DE , FL , GA , IL , IN , IA , KS , KY , LA , ME , MD , MA , MI , MN , MS , MO , NE , NH , NJ , NY , NC , ND , OH , OK , PA , RI , SC , SD , TN , TX , VT , VA , WV , WI , DC
Canada: NB , NS , ON , QC , SK
Native Distribution: Eastern Canada to Sask., s. to WV, upland GA & e. TX
Native Habitat: Rich woods; thickets; clearings; shady river bottoms

Growing Conditions

Light Requirement: Part Shade , Shade
Soil Moisture: Moist
Soil pH: Circumneutral (pH 6.8-7.2)
Soil Description: Rich soils.
Conditions Comments: Spreads by seed and can become weedy.

Benefit

Conspicuous Flowers: yes
Attracts: Birds

Last Update: 2012-12-07