Populus x 'Balsam Spire' = Populus trichocarpa x Populus balsamifera - Hybrid Balsam-poplar

Found in more than six tetrads between 1995 and 2005 so the general details for this species will be presented in the forthcoming Flora of South Lancashire (in prep.). Details supplementary to those appearing in the flora publication will be displayed here in due course.