Populus alba white poplar Salicaceae POAL*p; Bx, br, pb, vc; NY, ct; Q, a, cu (Greller 1977), ft, j, tl, vb; K, gt, m, pl; R, bm, hs;

   

Populus alba.A. Fabião.classics.uc.edu (Accessed 9/2014).

Populus alba.A. Fabião.classics.uc.edu (Accessed 9/2014).

Populus alba is a tree to 30 m tall, usually colonial from root sprouts bark whitish, smooth, often dark at base, twigs white-wooly; growth pattern indeterminate (Gargiullo personal observation). 

Leaves alternate, palmately lobed, lobes blunt, dark green above, white-wooly below. 

Flowers in catkins. 

Fruit dry, plumed, wind-dispersed. 

Wetland status: NL. 

Frequency in New York City: Occasional. 

Origin: Eurasian. 

Habitat: Upland, open areas, soil pH 4.9-7 (USDA, NRCS 2010), intolerant of shade. 

Notes: Escaped from cultivation. Fast growing pest, displacing native species. A host tree of the Asian longhorn beetle, Anoplophora glabripennis (see Norway maple). Listed as federal and state noxious weed (USDA, NRCS 2010).