Populus x jackii Sarg. (P. candicans auct. non Aiton; P. gileadensis Roul.; P. deltoides x P. balsamifera)
First record: PD Sell, 1961
24
On north side of road just north of bend by Green Knoll Barn, Guilden Morden, 278.448, young lvs with strong balsam-like smell, PD Sell 87/21 & 21a, 17.4.1987, & 87/21a, 23.5.1987, CGE.
45
Old railway sidings, 464.575, GMS Easy, 1978.
Just to south of Garden House Hotel, Cambridge, 447.578, smelling strongly of balsam, even some way from the tree on a warm morning, PD Sell 87/85, A Clarke & LC Nicol, 29.5.1987, CGE.
46
Milton, hedgerow, 477.629, GMS Easy, 1968.
54
Arable hedgerow, Bartlow, GMS Easy, 1976.
55
Planted tree on roadside near Quy Water, 509.594, dark green with strong sickly-sweet smell, PD Sell 61/106, 19.4.1961, CGE.
