Populus alba L.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - Trees with whitish-gray bark and mostly widely spreading branches; terminal bud and young twigs tomentose; lvs white-tomentose beneath, palmately 3–7-lobed on long shoots, ovate and irregularly dentate on short ones; stamens 6–10; stigmas 2, bifid, filiform; fr narrowly ovoid, the pedicel 1–2 mm; seeds (1)2(3) per placenta; 2n=38, 57. Native of Eurasia, commonly planted, and occasionally escaped. A columnar form is cv. ‘Bolleana’ (P. bolleana)
white poplar, silver poplar