Solidago gigantea smooth goldenrod Asteraceae SOGI; K; 

 

Solidago gigantea

Solidago gigantea.Andea Moro.irapl.altervista.org (Accessed 4/2014).

Solidago gigantea is a perennial herb, 25 cm to 2 m tall, colonial from long rhizomes, stems smooth with a whitish-waxy bloom. 

Leaves alternate, 6-17 cm long, 1-4.5 cm wide, lance-shaped, pointed at both ends, 3-veined, margin toothed, no stalk (sessile), upper leaves smaller. 

Flowers yellow, of two types in small heads, rays 10-17, disk flowers 6-12, base of flower heads 0.4 cm long; inflorescence branched, from a central axis, branches curved with flowers along one side; Aug.-Sept. 

Fruit dry, a seed-like achene, plumed, wind dispersed. 

Wetland status: FACW. 

Frequency in NYC: Very infrequent. 

Origin: Native. 

Habitat: Open moist soil.