Western Balsam-poplar
Scientific name: Populus trichocarpa Torr. & A. Gray ex Hook.
Diagnostic features Tree to 35m with narrow outline but spreading lower branches, with few or no suckers. Leaves ovate to narrowly so, mostly truncate to subcordate at base, acuminate at apex. Petioles inconspicuously and very shortly (but often densely) pubescent. Mostly male.
Chromosome number: (2n=38).
Habitat Introduced-naturalized; frequently planted for ornament and for timber in small plots.
Distribution Scattered in Britain, naturalized by suckers in Lanarks; Western North America. Several new cultivars are now being grown, e.g. 'Trichobel', with very fast growth-rates.
This species is keyed out on Page 1693 in the Text Key.
Hybrids - See Populus generosa(x) A. Henry (= Populus deltoides Marshall x Populus trichocarpa) - See Populus 'Balsam-Spire' (= Populus trichocarpa x Populus balsamifera) |