This The British Royal Family Fashion photo contains
spurge, winter jasmine, jasminum nudiflorum, fedora, felt hat, homburg, stetson, and trilby.
There might also be
buttercup, butterflower, butter flower, crowfoot, goldcup, kingcup, western buttercup, ranunculus occidentalis, st peter's wort, hypericum tetrapterum, and hypericum maculatum.