Tanacetum vulgare.Les Mehrhoff.www.discoverlife.org (Accessed 5/2014).

Tanacetum vulgare is a perennial herb 40 cm to 1.5 m tall, hairless, coarse, colonial from a stout rhizome, aromatic. 

Leaves alternate, pinnately dissected, margins toothed, blade 10-20 cm long, midrib (axis) winged. 

Flowers yellow, 20-100, no rays, disk 0.5-1 cm wide; blooms Aug.-Oct. 

Fruit dry. 

Wetland status: NL. 

Frequency in NYC: Very infrequent. 

Origin: Europe. 

Habitat: Escaped from cultivation into open sites.