Species: Eupatorium maculatum var. bruneri
Encyclopedia of Puget Sound
Joe-pye Weed is a stout, fibrous-rooted, herbaceous perennial that can be up to 1.5 m tall. The lance-shaped leaves are 6-20 cm long, have serrated edges, and occur in whorls of 3-4 on the stem. The foliage is covered with short, curled hairs. Flowerheads are arranged in a flat-topped, umbrella-like inflorescence at the top of the stem. Each head has 2-3 series of a few overlapping, purplish involucral bracts and 9-22 purple disk flowers. Ray flowers are lacking. The seeds have numerous, thin, stiff bristles on top, forming a pappus.
Source: Encyclopedia of Life
Classification
Dicotyledoneae
Asterales
Asteraceae
Eupatorium
NatureServe
Classification
Ecology and Life History
Joe-pye Weed is a stout, fibrous-rooted, herbaceous perennial that can be up to 1.5 m tall. The lance-shaped leaves are 6-20 cm long, have serrated edges, and occur in whorls of 3-4 on the stem. The foliage is covered with short, curled hairs. Flowerheads are arranged in a flat-topped, umbrella-like inflorescence at the top of the stem. Each head has 2-3 series of a few overlapping, purplish involucral bracts and 9-22 purple disk flowers. Ray flowers are lacking. The seeds have numerous, thin, stiff bristles on top, forming a pappus.
Source: Encyclopedia of Life