U - Umbrellas?
This was my most difficult letter. I don't have Umbrella Magnolias, or Urn Plants. I've never heard of Ulex-Minor nor seen an Ugli Fruit flower. I was kindly given a suggestion in a comment, and the flower looked familiar as one of my weeds, but not by the name starting with U. So, I had to go with the Umbelliferae family. I held off including fennel in F and D in dill, because they are both members of the Umbel family. Or, they used to be, "Umbelliferae" is now "Apiaceae," but the umbels remain. The umbels are the flowers shaped like umbrellas, with smaller umbrellas at the ends. They really are striking flowers, and even the dried ones with seeds are decorative. This family includes carrots, parsley, celery, cilantro, and more. Beware, it also includes the deadliest plants in North America, poison hemlock and water hemlock!
Bouquet Dill and Bronze Fennel
Yes, lumped together because I filed the photos under dill/fennel instead of each in their own file. Now I don't know what was which. They have the same lovely umbrella flowers though. The dill for me has been annual, but the fennel keeps coming back. I grow them for the flowers and pretty lacy foliage.