Eutrochium maculatum  (Eupatorium m., Eupatoriadelphus maculatus) spotted joe-pye weed Asteraceae EUMA; Bx, vc; NY, iw; Q (DeCandido 2001); R, bm, bg, d, gr, h, lp, pm, sv, w;

  

Eupatorium maculatum.www.ct-botanical-society.org.Janet Novak

Eupatorium maculatum. Copyright © 2000 Janet Novak www.ct-botanical-society.org. (Accessed 4/2014).

Perennial, 60 cm to 2 m tall, stem speckled or evenly purplish (no waxy bloom), solid in center. 

Leaves in whorls of 4-5, stalk short; blade 6-20 cm long, 2-9 cm wide, lance-shaped to narrowly elliptic, pointed at both ends, rough on both sides, veins pinnate, margin sharply toothed. 

Flowers dull purple, 9-22 per head, bracteate base 0.7-0.9 cm tall, often purplish, bracts overlapping in several rows, blunt-tipped; inflorescence of flat-topped segments, stems often finely sticky-hairy; blooms July-Sept. 

Fruit dry, 1-seeded, 5-angled plumed achene. Seeds eaten by some birds (Martin et al. 1951). 

Wetland status: FACW. 

Eutrochium maculatum. By Arthur Haines. Copyright © 2016.New England Wild Flower Society.gobotany.newenglandwild.org

Eutrochium maculatum. By Arthur Haines. Copyright © 2016.New England Wild Flower Society.gobotany.newenglandwild.org (Accessed 1/2016).

Frequency in NYC: Occasional. 

Origin: Native. 

Habitat: Open moist areas, prefers calcareous soil, probably does well on concrete debris. (USDA, NRCS 2006) lists a range of soil pH 5.5-7.0. Moderately tolerant of shade.