Dear All, Looking for help identifying three trees. Number 1 has the biggest leaves I've ever seen, perhaps 30-40 cm in length. Smooth light grey trunk, light green foliage. Picture taken in an arboretum here in Maryland. Number 2 and number 3 are the same tree / shrub. I'm showing leaves and trunk. It was slow to get green this season, if that helps. Number 4 and 5 are the same tree. Thanks!
Yes, Magnolia pyramidata looks plausible, although could also be ashei (now that I know where to look it's much easier to guess), as does Crepe Myrtle with its descriptions of peeling trunk. I looked at all Viburnum species listed in Wiki, looks like Viburnum plicatum is ours! Although even within the species there is a lot of diversity in flower shapes. This one is "Japanese snowball" :) Thank you!
All the native American umbrella magnolias have ear-like leaf bases except M. tripetala, which has tapered leaf bases. If this could be a planted specimen then it might be one of the related Asian species.