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 616(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, 3050 mm long, ovate, more evenly toothed, persistently woolly beneath. Flowers: Greenish-yellow catkins (female only), 50 mm long, spring. Fruit: None.
Key Features:
Control: large tree should be ring-barked or felled and the entire root system removed
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

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