Vernonia noveboracensis New York ironweed Asteraceae VENO; Bx, pb; R, lp;


Vernonia noveboracensis.Eleanor

Vernonia noveboracensis. © 2001 Eleanor (Accessed 4/2014).

Vernonia noveboracensis is a perennial herb, 1-2 m tall. Winter plant dark brown with numerous flower heads. 

Leaves alternate, stalkless, lance-shaped, 10-28 cm long, 1.5-6 cm wide, tip long pointed, gradually narrowed to base, rough above, hairy below, margin toothed or almost entire 

Flowers purple, in heads with 30-55 flowers, bracts at base of head 0.7-1.7cm long with long, filament-like tips; inflorescence open, flat-topped to indented; blooms Aug.-Oct. 

Fruit dry, an achene with dark brownish plume. 

Wetland status: FACW+. 

Frequency in NYC: Very infrequent.

 Origin: Native. 

Habitat: Open marshes, wet edges.