Nearctica - Eastern Wildflowers - Asteraceae - Hairy Thoroughwort (Eupatorium pilosum)

Hairy Thoroughwort

(Eupatorium pilosum)

Color photograph: Homer D. House. 1918. Wildflowers of New York.

Line Drawing: Britton, N.L., and A. Brown. 1913. An Illustrated Flora of the Northern United States and Canada, Second Edition.

Eupatorium rotundifolium

The leaves of Round-leaved Thoroughwort are heart-shaped with a toothed outer margin and those of Hairy Thoroughwort more elongate and with rounded teeth on the outer margin.

Hairy Thoroughwort (Eupatorium pilosum)

Identification: Flowers white and arrange in flat-topped clusters. Leaves spade-shaped, hairy, and sessile to the stem. Outer leaf margin dentate, but teeth blunt. Plant 3 to 8 feet in height.

Distribution: New York and southern New England in the north, southward to Florida and Louisiana.

Habitat: Hairy Thoroughwort is a coastal species found in bogs and wet sandy soils.

Flowering period: August to September.

Hairy Thoroughwort (Eupatorium pilosum)

Similar Species:

Round-leaved Thoroughwort (Eupatorium rotundifolium)

Similar Species