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Plant Details

Ageratina altissima [= Eupatorium rugosum]

White Snakeroot, Common Milk-poison

Scientific Name:

Ageratina altissima [= Eupatorium rugosum]

Common Name:

White Snakeroot, Common Milk-poison

Plant Family

Asteraceae (Aster Family)

Native/Alien:

NC Native

Type:

Herb/Wildflower

Size in Feet:

1 - 3

Light:

Sun - Part-sun

Soil Moisture:

Sub-mesic(*)

Bloom Time:

August - September - October - November

Bloom Area:

Mountains, Piedmont, rare in Coast

State Rank:

No NC Rank Listed (*)

Global Rank:

No Global Rank listed (*)

State Status:

No NC Status Listed (*)

Federal Status:

No U.S. Status Listed (*)

Notes:

Per Weakley, "this species has been shown to be the cause of the "milk sickness" of pioneer days; the plants contain a poison which is transmissible to humans through cow milk." Attracts butterflies, bees, and moths.
Uncommon on the Coast.

Plant

image

Tom Harville
Oct '08

Bloom heads

image

Tom Harville
Oct '08

Blooms & Buds

image

Tom Harville
Oct '08

Leaf

image

Tom Harville
Oct '08

Links:

USDA PLANTS Database Record


Bird-Friendly Native Plants



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