Swaziland's Alien Plants Database

Populus alba L. SALICACEAE Invasive, Potential problem species Origin: Europe, Asia and North Africa Growth Form: Tree Plant Description: Plant: Deciduous tree 6–16(–25) m high, suckering freely; bark white or grey with horizontal lines, becoming rough and darker with age; buds and young twigs thickly, white woolly. Leaves: Dark green and shiny above, white- or grey-woolly beneath; leaves of sucker shoots and ends of long shoots: large, to 100 mm long, ± triangular, three- to five-lobed or unevenly toothed, woolly beneath; leaves of short shoots: smaller, 30–50 mm long, ovate, more evenly toothed, persistently woolly beneath. Flowers: Greenish-yellow catkins (female only), ± 50 mm long, spring. Fruit: None. Key Features: Control: Comments: Suspected/Possible More information: Weeds & Invasive Plants Home Page NRCS Plants Database Photo - tree USDA-NRCS PLANTS Database / Herman, D.E. et al. 1996. North Dakota tree handbook. USDA NRCS ND State Soil Conservation Committee; NDSU Extension and Western Area Power Admin., Bismarck, ND. Photo - fruit USDA-NRCS PLANTS Database / Herman, D.E. et al. 1996. North Dakota tree handbook. USDA NRCS ND State Soil Conservation Committee; NDSU Extension and Western Area Power Admin., Bismarck, ND. Illustration USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Photo - leaves USDA-NRCS PLANTS Database / Herman, D.E. et al. 1996. North Dakota tree handbook. USDA NRCS ND State Soil Conservation Committee; NDSU Extension and Western Area Power Admin., Bismarck, ND. Photo - bark Paul Wray, Iowa State University Photo - leaves Paul Wray, Iowa State University

KEY   Confirmed (herbarium specimen)   Visual record   Suspected Click on map grid square to view record information for each grid square.

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