Hi,
might be, very hairy calyx etc. Did you see the underside of the leaf? This should be hairy as well.
Flowers are described as quite big and (nearly) without odour - but several (5-7-9) in a raceme.
Did you see the bark? Should be non-peeling.
https://www.treesandshrubsonline.org/ar ... ladelphus/
Perhaps no genus of shrubs presents so many difficulties in the differentiation of its species as this. A few of them are well marked, like P. microphyllus, with small entire leaves; P. hirsutus, with exposed leaf-buds and united stigmas; and P. mexicanus, with similar leaf-buds but divided stigmas; but the majority offer no really distinctive characters. The difficulty is further increased by free hybridisation under cultivation, so that now a large proportion of cultivated plants are not species at all, but garden hybrids.
https://www.treesandshrubsonline.org/ar ... pubescens/
A robust shrub 10 to 20 ft high, as much or more in diameter; young shoots glabrous, green; the year-old shoots grey, not peeling. Leaves of the barren shoots oval or ovate, broadly tapered or rounded at the base, pointed, sparsely and irregularly toothed, 2 to 5 in. long, about half as wide, dull and almost glabrous above, downy beneath; with three or five prominent veins. Leaves of the flowering twigs smaller. Flowers pure white, 13⁄4 in. wide, not much scented; produced in June at the end, and in the uppermost leaf-axils of lateral twigs, usually seven or nine each. Calyx-lobes 2⁄5 in. long, lanceolate, and, like the individual flower-stalks, downy.
Native of the S.E. United States; introduced early last century. It is a fine free-flowering shrub, not uncommon in gardens, distinguished chiefly by the year-old bark not peeling, the numerous flowers in each raceme, and the downy calyx. One of the finest and noblest of mock oranges.