Spring is dogwood season in the eastern US, where the trees grow wild and lanky in forests, more squat in sun, and because of their weak immune systems are the bane of show-off gardeners. The dogwood (cornus florida) is also the state flower of North Carolina, where I grew up. Why a state needs a flower, I'm not sure, but we had the cheerful fact pounded into us in school, along with a mild resentment for Virginians, who claimed the same bloom.
So of course I noticed this old and healthy specimen near the Observatory in Greenwich Park:

Dogwoods of this sort don't grow naturally in England, and their maximum lifespan is unknown. So... the kind of homesickness only Spring can evoke sends me off on a gilded fantasy in which the tree was shipped back from the doomed English settlement in the Carolinas, as a gift for her majesty, Elizabeth I, whose garden Greenwich Park was at the time.
Of course, cultural 'exchange' works both ways. I dug this out of the photo archives (the shamefully chaotic shopping bag at the bottom of the closet):

As an eye-level garden ornament on the campus of the University of North Carolina, where I did my undergrad studies, the gargoyle looks positively cuddly. But its overstated features would have had a more menacing effect from its original, pre-restoration perch, just above Big Ben.